THE UNITED REPUBLIC OF TANZANIA, PRIME MINISTER'S OFFICE -REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

DAR ES SALAAM REGION

FORM TWO REGIONAL MOCK ASSESSMENT

CODE: 031 PHYSICS

TIME: 2:30HRSMonday 31^st August, 2026 A.M

INSTRUCTIONS

1. This paper consists of section A, B and C with a total of ten (10) questions.
2. Answer all questions in the space provided.
3. Section A and C carries fifteen (15) marks, section B carries seventy (70) marks.
4. All writing must be in black or blue ink.
5. Communication devices, Bibles and any unauthorised materials are not allowed in the assessment room.
6. Calculator and mathematical tables may be used in the assessment room.
7. Write your assessment Number at the top right hand corner of every page.
8. The following information may be useful:
   • Acceleration due to gravity, g = 10 m/s²
   • π = 3.14

SECTION A (15 MARKS)

Answer all questions in this section

1. For each of the item (i) – (x), choose the correct answer from the given alternatives and write its letter in the box provided.

(i) Form one students were pushing the wall suddenly form two students appeared and told them their work could zero. Then explained that work done is zero when force is applied but

1. No distance moved
2. Mass is small
3. Time is long
4. Energy is high

(ii) A student use a density bottle to determine relative density of unknown liquid. The mass of an empty bottle is 25g, the mass of bottle full of water is 75g and when full of liquid is 65g. What is the relative density of liquid?

1. 0.80
2. 0.87
3. 0.62
4. 1.25

(iii) Imagine two groups of equal number of people are pulling a rope by their bare hands, each group is trying to overcome opponent's force. What kind of force does each group exert on a rope?

1. Tension force
2. Normal force
3. Frictional Force
4. Stretching force

(iv) When measuring volume of a liquid using measuring cylinder care must be taken to avoid some errors. Which one must be taken into consideration?

1. Initial volume
2. Final volume
3. Meniscus
4. Level of liquid

(v) The upward force acting on body that is totally or partially immersed in a fluid is affected by the following factors except

1. The weight of the body
2. The volume of immersed body
3. The density of the fluid
4. Acceleration due to gravity

(vi) Why is hot soup tastier than cold soup?

1. It has higher surface tension
2. It has lower surface tension
3. It has higher capillary action
4. It has lower capillary action

(vii) Which method is preferred to use if a student wishes to charge an uncharged body by using negatively charged body in order to make it acquire positive charge?

1. Friction
2. Contact
3. Induction
4. Heating

(viii) Which of the following type of magnet is used in voltmeters and ammeters?

1. Horse shoe magnet
2. Disc magnet
3. Ball ended magnet
4. Ring magnet

(ix) Two plane mirrors are placed at an angle of 60° to each other. How many images of an object placed between them will be formed?

1. 6
2. 5
3. 3
4. 4

(x) A branch of physics that speculates the interior and exterior structure of the earth is referred as

1. Astronomy
2. Astrophysics
3. Geophysics
4. Geology

ANSWERS

2. Match the items in List A with the correct response in List B by writing the letter of the correct response beside the corresponding item number in the table provided.

LIST A	LIST B
(i) Photo resistor (ii) Rheostat (iii) Potentiometer (iv) Magneto – resistor (v) Thermistor

Answers

SECTION B (70 Marks)

Answer all questions in this section

3. (a) A truck with wide tyres of crosses soft muddy road more easily than a truck with a single narrow tyre. Explain this observation. (4marks)

(b) A rectangular box with the base area of 2m² and weight 100N rests on a flat horizontal surface. When a weight is placed on top of the box, the pressure at the base is increased to 60N/m², find W. (6marks)

4. (a) A laboratory technician is measuring the external diameter of cylindrical metal rod using vernier calliper.Before taking measurement, she checks the instrument carefully and ensure proper handling to obtain accurate results. Name and describe the function of any four main parts of a vernier calliper. (4marks)

(b) The hydrometer of mass 24g floats in oil with density 0.8g/cm³. Calculate

1. Mass of oil displaced (3marks)
2. Volume of oil displaced (3marks)

5. (a) Explain two (2) differences between speed and velocity (4marks)

(b) A car starts from rest and accelerates uniformly at a rate of 4m/s² for 5seconds. It maintain a constant speed for 30 seconds. The brakes are then applied and the car decelerates for 10 seconds.

1. Find maximum speed attained (2marks)
2. Calculate total distance covered by using graphical method (4marks)

6. (a) During thunderstorm, a fuel tanker driver is instructed to ensure that metallic chain hanging from the back of the truck is dragging on the road. Describe how dragging chain ensure safety (4marks)

(b) Draw a well labelled diagram of gold leaf electroscope (6marks)

7. (a) With the help of formula explain the two types of mechanical energy (4marks)

(b) A rock A has mass of 2kg and a speed of 1m/s. Rock B has mass of 1kg and speed of 2m/s. Which rock has more kinetic energy? (6marks)

8. (a) State two conditions necessary for total internal reflection to occur (4marks)

(b) A light travelling from glass to air strikes the bounding at an angle of incidence 45. If the refractive index of glass is 1.5. Determine

1. Angle of refraction (2marks)
2. Critical angle (2marks)
3. Will the total internal reflection occur? Give reasons (2marks)

9. (a) Identify the types of lens which fits a person with

1. Short sighted defect (2marks)
2. Long sighted defect (2marks)

(b) An object 3cm high is placed 30cm from the pole of concave mirror with focal length 12cm. Using mirror formula find

1. Position of the image (2marks)
2. The size of the image (2marks)
3. The nature of image (2marks)

SECTION C (15marks)

Answer question ten (10)

10. (a) A physics teacher wants to set up a lighting system for two rooms using 12V solar battery. She want the bulb to operate independently in both rooms, meaning if bulb in room A burns out, the bulb in room B should remain at full brightness. Draw a circuit diagram to meet this requirement (5marks).

(b) The terminal p.d of battery is 12V when an external resistance of 20Ω is connected and 13.5V when resistance of 45Ω is connected calculate e.m.f and the internal resistance of the battery (5marks)

(c) Find the toal cost of running simultaneously a refrigerator rated 400W and radio set rated 60W for 5hours, if electricity costs Tsh.300 per KWh (5marks)

Student’s Assessment Number: _______________________________

TANZANIA HEADS OF ISLAMIC SCHOOLS COUNCIL, FORM TWO INTER ISLAMIC MOCK ASSESSMENT

031 PHYSICS

TIME: 2:30 HOURS Tuesday, 04^th August 2026 a.m.

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all questions in each section in the spaces provided.
3. All writings must be in blue or black ink, except drawings, which must be in pencil.
4. Communication devices and any unauthorised materials are not allowed in the assessment room.
5. Write your Assessment Number at the top right corner of every page of this paper.
6. Where necessary, the following constants may be used:

• π = 3.14
• Acceleration due to gravity, g = 10 m/s².

SECTION A (15 MARKS)

Answer all questions in this section

1. For each of the items (i) – (x), choose the correct answer from among the given alternatives and write its letter beside the item number in the space provided.

(i) In a Science demonstration, a Form One boy placed a wooden block in a container with water. The block was observed to float on the water's surface. What can the student conclude about the relative density of a wooden block?

1. It is greater than one.
2. It is equal to one
3. It is less than one
4. It can not be determined by one

(ii) A cube of sides 2cm is completely submerged in water, with the bottom of the cube at a depth of 100m. The difference between the pressure on its top and bottom is____________

1. 200N/m²
2. 800N/m²
3. 1000N/m²
4. 1800N/m²

(iii) During the construction of a Tall NSSF building in the Morogoro region, an engineer accidentally dropped his hammer from a height of 20m above the base floor. If air resistance is ignored, which statement best describes the motion of the hammer?

1. It accelerates at a constant rate.
2. It moves with constant velocity.
3. Its acceleration decreases as it falls.
4. It first accelerates, then moves at constant speed.

(iv) Farhati had a dry sponge, which she used to wipe water drops off the table top. After passing it off the table, the sponge absorbs all liquid drops from the tabletop and is applied a very small force to squeeze it. Which property of the sponge is demonstrated?

1. Rigidity
2. Compressibility
3. Elasticity
4. Plasticity

(v) A housemaid uses an electric Kettle that draws 2A at 240V to boil water in 5 minutes, so she can quickly prepare the kids to rush for the school bus at 6:00 am. Suppose she is doing so for all five working days. How much electric energy is used per day?

1. 144,000J
2. 172,000J
3. 2400J
4. 2880J

(vi) Ahmed uses magnets to make women's hand bats-locks in his work. He accidentally dropped a magnet on the floor. The magnet broke into two pieces, each measuring 3cm and 7cm. Which statement is true about the pieces of magnet?

1. There will be two poles in the 7cm magnet and one pole in the 3cm magnet
2. A 3cm magnet will not attract any magnetic material
3. A 3cm magnet will have only a North pole
4. Better pieces will have two magnetic poles each

(vii) Suhaila uses a plane mirror on her dressing table every day before leaving the room. Her image behind the plane mirror is formed by which of the following properties of light?

1. Refraction
2. Roflection
3. Dispersion
4. Fast propagation

(viii) Three capacitors of values 2μF, 3μF and 6μF are connected in series, then in parallel. What is the equivalent capacitance in each case?

1. 11μF and 1μF
2. 11μF and 11μF
3. 1μF and 11μF
4. 0.1μF and 1/11μF

(ix) Sabri is riding his bicycle along a straight road to school. As he approaches the junction, he gradually applies the brakes. The graph of his velocity against time is a straight line sloping downward. What does this indicate about the cyclist's motion?

1. Sabri is speeding up.
2. Sabri is moving at a constant speed
3. Sabri is slowing down uniformly
4. Sabri is at rest

(x) It is fact that any object always has mass but does not always have weight. What must be present and acting on the mass for it to have weight?

1. Acceleration due to gravity
2. A set of scales for measurement
3. Friction due to air resistance
4. Normal reaction force

ANSWERS

2. Match the descriptions of items used in reflection of light by curved mirrors in List A with their corresponding items used in reflection of light by curved mirrors in List B by writing the letter of the correct response beside the item number in the table provided.

ANSWERS

SECTION B (70 MARKS)

Answer all questions in this section

3. (a) While driving, a man noticed that the side mirrors of his car show images which are quite different from those formed by shaving mirrors. The man wondered and decided to search for clear information on the type of mirror installed in this car. Being the right person to help a man;

1. Name the type of mirrors fixed in the car. [01 mark]
2. Why are the mirrors you named in (i) preferred? [03 marks]

(b) When an object is placed 25cm from a convex lens, an inverted image which is twice as large as the object is formed. How far from the lens must the object be placed to obtain an image four times the size of the object? [06 marks]

4. (a) In his Garage, Musa used a hydraulic press whose pistons have their areas given as 0.0003m² and 2cm², respectively. An operator exerted a force of 120N to push down the smaller piston. Find the pushing up force in the larger piston. [06 marks]

(b) The length of a spring is 16.0cm. Its length becomes 20cm when supporting a weight of 5N. Calculate the length of the spring when supporting a weight of 6.0N. [05 marks]

5. (a) Mama Amina has a restaurant where she serves the staff of a nearby institution. In the late hours, Sadick asked her to serve him a hot soup, saying it was tastier. Briefly explain why it is tastier than cold soup? [04 marks]

(b) A box is lifted vertically to a height "h" and also pushed the same distance across a rough floor. Which case involves more work? Briefly explain. [04 marks]

(c) What is meant by the term magnetic screening (magnetic shielding)? [02 marks]

6. A car moves with a uniform velocity of 12 m/s for 6 seconds, then accelerates at 2.0m/s² for 4 seconds, and then travels for 2 more seconds with uniform velocity. The car finally decelerates to stop in 15 seconds.

1. Plot the graph of the motion. [03 marks]
2. Calculate the distance travelled in 5 seconds. [03 marks]
3. Calculate the average velocity for the journey, assuming it is a straight line. [04 marks]

7. (a) While standing at the edge of a swimming pool, Shaaban notices that the bottom of the pool appears closer to the surface than it actually is. When he steps into the pool, he realises it is deeper than it looked from the outside.

1. Which property of light makes the pool of water look shallow? [01 mark]
2. What is the main cause of the property you tested in (i) above? [03 marks]

(b) A U-tube manometer contains mercury (ρ = 13,600kg/m²), one side is connected to a gas at pressure P₁ and the other side is open to atmosphere at pressure P₂ = 1×10⁵Pa. The difference in mercury level between the two arms is h = 0.25m, as shown in the diagram.

1. Calculate the pressure difference. [03 marks]
2. Determine the absolute pressure P₁. [03 marks]

8.(a) Different professionals use different optical instruments in their work.

1. Name the optical instruments used by an astronomer and a jeweller. [02 marks]
2. State one reason for choosing each instrument in daily life. [02 marks]
3. Give two other uses of optical instruments in daily life. [02 marks]

(b) An astronomical telescope in normal adjustment has a total length of 78cm and produces an angular magnification of 15. What is the focal length of the objective and the eyepiece lens? [04 marks]

9. (a) State Archimedes' principle. [04 marks]

(b) An iron piece of mass 360g and density of 7.89g/cm³ is suspended by a rope so that it is partially submerged (halfway) in an oil of density 0.9g/cm³. Find the tension in the string (use g = 0.01N/g). [06 marks]

SECTION C (15 MARKS)

Answer question ten (10)

10. (a) An electric meter draws a current of 10A when connected to a 120V supply. Calculate the:

1. Motor's power consumption. [03 marks]
2. Energy in Joules that a motor uses during 5 hours of operation. [03 marks]

(b) A student is setting up an electrical circuit for a science experiment. She has two wires of the same material. Wire X is very long and thin, while wire Y is short and thick. Compare the resistance of wire X to that of wire Y. [04 marks]

(c) A battery of Emf 12V and internal resistance 1.5Ω is connected to a 4Ω resistor. Calculate the:

1. Total resistance of the circuit. [01 mark]
2. Current through the battery. [02 marks]
3. P.d across the cell terminals. [02 marks]

PRIME MINISTER'S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

KILIMANJARO REGIONAL COMMISSIONER'S OFFICE

FORM TWO MOCK ASSESSMENT

CODE: 031 PHYSICS

TIME: 2:30 HOURS Wednesday, 20th May A.M 2026

INSTRUCTIONS

1. Write your answers clearly and neatly in the spaces provided / Answer sheet given.
2. Use blue or black ink for writing. Pencil should be used for diagrams only.
3. Use SI units where applicable.
4. Electronic devices are not allowed, except a non-programmable calculator.
5. The constants used:

• The density of water, ρ = 1000 kg/m³.
• Acceleration due to gravity, g = 10 m/s².

SECTION A (15 MARKS)

Answer all questions

1. From the given alternatives, choose the letter of the most correct answer. (1 mark each)

(i) A student notices that electric bulbs produce light when current flows, water boils when heated, and a ball changes direction when kicked. Which branch of physics best explains all these observations?

1. Physics is divided into unrelated branches.
2. Physics studies matter, energy and their interactions.
3. Physics deals only with motion.
4. Physics only explains electrical phenomena.

(ii) A student repeatedly measures the diameter of a wire and gets slightly different values each time. The best way to reduce this error is to:

1. Use a shorter ruler.
2. Measure only once.
3. Take the average of several readings.
4. Ignore small differences.

(iii) Two objects A and B have equal mass, but object A occupies more volume than B. What can be concluded?

1. A has higher density than B.
2. B has higher density than A.
3. Both have the same density.
4. Density cannot be determined.

(iv) Why are magnets often fitted to the doors of refrigerators and some cupboards?

1. To keep away heat.
2. To keep the inside environment warm.
3. To keep the door tightly closed.
4. To keep iron away.

(v) An object immersed in water experiences an upthrust equal to:

1. Its mass.
2. Its volume.
3. The weight of displaced liquid.
4. The density of the liquid.

(vi) Why do sharp knives cut better than blunt ones?

1. They are heavier.
2. They have no mass.
3. They are longer.
4. They have smaller area of contact.

(vii) A suction cup sticks to a smooth wall because:

1. Air pressure outside is greater than inside.
2. Gravity pulls it.
3. The wall attracts it magnetically.
4. It has glue.

(viii) A car starts from rest and moves with constant acceleration. Which graph best represents this motion?

1. Distance-time straight line.
2. Acceleration-time straight line with positive slope.
3. Velocity-time horizontal line.
4. Velocity-time straight line with positive slope.

(ix) A camera forms an image on the film or sensor that is:

1. Real, inverted and diminished.
2. Virtual, upright and magnified.
3. Real, upright and magnified.
4. Virtual, inverted and diminished.

(x) A student lifts a 50 N load through a height of 2 m in 5 s. What is the power developed?

1. 10 W
2. 20 W
3. 50 W
4. 100 W

ANSWERS

2. Match each item from column A with its corresponding item in column B. Then write the letter of the correct response in the space provided. (1 mark each)

ANSWERS

SECTION B (70 MARKS)

3. During a school inspection, a student walks along a straight corridor whose length has been measured as 40 m. The student takes 25 s to move from one end of the corridor to the other without changing speed.

1. From the information given, determine the physical quantities involved and their appropriate SI units. (2 marks)
2. Use the data to determine the student's rate of motion along the corridor. (4 marks)
3. Using the nature of the motion described, comment on the acceleration of the student. (4 marks)

4. A student lifts a load vertically from the ground and places it on a table.

1. Using this activity, explain the conditions under which work is considered to have been done. (3 marks)
2. Identify the form of energy acquired by the load after being lifted. (3 marks)
3.  State two factors that would affect the amount of work done during the lifting process. (4 marks)

5. A student is investigating why some objects float while others sink when placed in water.

(a) Define the following terms as used in his investigation:

1. Upthrust. (1 mark)
2. Apparent weight. (1 mark)

(b) In his investigation some Principles and Laws were used.

1. State Archimedes' Principle. (2 marks)
2. State one condition for sinking and floating of a body in a liquid. (2 marks)

(c) A solid object weighs 50 N in air. When completely immersed in water, its apparent weight becomes 35 N. Calculate:

1. The upthrust acting on the object. (2 marks)
2. The relative density of the object. (2 marks)

6. A water tank is constructed at a height of 12 m above the ground to supply water to a school laboratory. Students observe that water flows faster from lower taps than from upper taps. They also use a hydraulic jack in the workshop to lift a car.

(a) Derive the expression for pressure in liquids at depth h, starting from the definition of pressure. (2 marks)

(b) From observation:

1. Explain why water flows with greater force from taps located lower down the building. (2 marks)
2. State two assumptions made when deriving the formula in part (a). (2 marks)

(c) Use the given information below:

1.  Calculate the pressure exerted by water at a depth of 5 m. (2 marks)
2.  A hydraulic jack has a small piston of area 0.01 m² and a large piston of area 0.5 m². If a force of 200 N is applied on the small piston, calculate the force produced on the large piston. (2 marks)

7. A laboratory technician is measuring the external diameter of a cylindrical metal rod using a Vernier caliper. Before taking measurements, she checks the instrument carefully and ensures proper handling to obtain accurate results.

(a) Name and describe the function of any four main parts of a Vernier caliper. (4 marks)

(b) Explain two common sources of error when using a Vernier caliper. (2 marks)

(c) During measurement:

• The main scale reading is 2.4 cm.
• The 6th division on the Vernier scale coincides with a main scale mark.
• The least count of the Vernier caliper is 0.01 cm.

1. Calculate the total diameter of the rod. (2 marks)
2. If a zero error of +0.02 cm is observed, determine the correct diameter. (2 marks)

8. (a) For each of the following, give a clear definition and an example:

1. Elasticity. (2 marks)
2. Cohesion. (2 marks)
3.  Adhesion. (2 marks)

(b) (i) An object is placed 2 cm from a plane mirror. If the object is moved by 1 cm towards the mirror, what will be the new distance between the object and the image? (2 marks)

(ii) Two plane mirrors are placed at an angle of 60° to each other. When an object is placed between them, find the number of images formed due to repeated reflections. (2 marks)

9. (a)(i) State two effects of a force on an object. (2 marks)

(ii) A car of mass 800 kg is pushed with a force of 4000 N on a horizontal road. Calculate the acceleration of the car. (2 marks)

(iii) If the force is applied for 5 seconds, calculate the velocity acquired by the car, assuming it starts from rest. (2 marks)

(b) A television set (TV) rated 40 W is switched ON for 5 hours every day.

(i) How much electrical energy in kWh does this TV consume in 30 days? (2 marks)

(ii) If the price of a unit of electricity is Tsh.229.60, what is the total electric cost of watching this TV in 30 days? (2 marks)

SECTION C (15 MARKS)

10. (a) After lesson on electric field the Physics teacher left an exercise to the student. The drawing of one student was as shown below:

Identify the mistake made by student in her drawing. (3 marks)

(b) An aircraft flying for a long time through the atmosphere may acquire electric charge. Explain why passengers inside the aircraft are safe, but a ground crew member who opens the aircraft door immediately after landing may experience an electric shock. (3 marks)

(c) Study the figure below and use the given instructions to answer the questions:

1. Why does the reading of the voltmeter drop when the switch is closed? (2 marks)
2. Calculate the unknown load resistance. (4 marks)
3. Calculate the internal resistance. (3 marks)

THE CATHOLIC DIOCESE OF TANGA, TANGA CATHOLIC SECONDARY SCHOOLS UNION (TACASSU)

FORM TWO JOINT PRE-NATIONAL ASSESSMENT 1

033 PHYSICS

Time: 2 ½ Hours    2026

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of ten questions.
2. Answer all questions.
3. Where necessary, use the following constants:

• Acceleration due to gravity, g = 10 m/s².
• Force due to gravity, g = 10 N/kg.
• Density of water = 1 g/cm³ or 1000 kg/m³.
• π = 3.14.

SECTION A (15 MARKS)

1. For each of the following (i) – (x) choose the correct answer among the given alternatives and write its letter in the box provided.

(i) A student wants to determine the volume of an irregular stone using a measuring cylinder. Which procedure is most appropriate?

1. Measure the stone with a metre rule and multiply its dimensions
2. Record the initial water level, immerse the stone completely, and record the new water level
3. Place the stone on a beam balance and record its mass
4. Heat the stone and measure the change in temperature

(ii) A laboratory technician needs to measure the mass of a small metal object accurately. Which apparatus should be used?

1. Measuring cylinder
2. Spring balance
3. Beam balance
4. Metre rule

(iii) A student observes that a moving bicycle slows down when the brakes are applied. Which effect of force is mainly demonstrated?

1. Changing the colour of an object
2. Changing the direction of light
3. Changing the state of motion of an object
4. Increasing the mass of an object

(iv) A body that returns to its original shape after deformation is said to be:

1. Plastic
2. Elastic
3. Rigid
4. Flexible

(v) Which property of liquids causes them to rise in narrow tubes?

1. Density
2. Surface tension
3. Capillarity
4. Pressure

(vi) Which device is used to detect electric current in a circuit?

1. Voltmeter
2. Ammeter
3. Galvanometer
4. Rheostat

(vii) The SI unit of pressure is:

1. Newton
2. Pascal
3. Joule
4. Watt

(viii) The mixing of coloured light is called:

1. Additive mixing
2. Subtractive mixing
3. Multiplicative mixing
4. Divisive mixing

(ix) Which form of energy is stored in a stretched spring?

1. Heat energy
2. Kinetic energy
3. Elastic potential energy
4. Chemical energy

(x) Which of the following is a good conductor of electricity?

1. Rubber
2. Plastic
3. Copper
4. Glass

ANSWERS

2. Match each of the physical quantities in List A with its corresponding units in List B by writing a letter of the correct answer below an item number in the table provided.

ANSWERS

SECTION B (70 MARKS)

3. A student rubs a plastic comb with a dry piece of cloth and then brings the comb close to small pieces of paper. The pieces of paper are attracted to the comb.

(a) Name the type of electricity produced on the comb.

(b) Explain why the comb becomes electrically charged when it is rubbed with the cloth.

(c) State two differences between conductors and insulators of electricity. 

(d)(i) Lightning is commonly associated with thunderstorms. State one danger of lightning to people and property.

(ii) State three measures that can reduce the risk of being struck by lightning during a thunderstorm.

4. (a)(i) When a body is totally immersed in fluid it weighs less than its weight in air. What is the reason behind?

(a)(ii) If the density of object S was 1.9 g/cm³, predict if it will float in water and give the reason for your suggestion.

(b) A Form One student got the following data: Weight of stone in air = 25 N. When completely immersed in water its weight became 20 N. What is the relative density of the stone?

5. (a) Explain how the umbra is formed when the light is blocked by an object.

(b)(i) Concave mirrors are used in many devices at home and in industry. State four uses of a concave mirror.

(b)(ii) A light ray passes from air into a glass slab. The angle of incidence in air is 30°, and the angle of refraction in the glass is 20°. Calculate the refractive index of the glass.

6. (a) Write three equations of uniformly accelerated motion.

(b) A car starts from rest and accelerates uniformly at a rate of 5 m/s² for 14 seconds. It then moves at a constant speed for 20 seconds. Finally, the car decelerates uniformly to rest in 10 seconds. 

1. Calculate the maximum speed reached by the car. 
2. Calculate the total distance covered by the car.

7. (a)(i) By providing one example to each, differentiate temporary magnet from Permanent magnet.

(a)(ii) State the basic law of magnetism.

(b) State four application of earth’s magnetic field.

8. (a) A simple electrical circuit consists of a battery, a generator, and a bulb. Explain the role of each component in the circuit.

(b)(i) A builder uses a pulley system to lift a load of mass 150 kg to the top of a building 10 m high in 8 s. Calculate the work done in lifting the load. (3 marks)

(b)(ii) Determine the power developed by the machine.

9. (a) State three similarities and three differences between lens camera and the human eye.

(b) A student is asked to observe a distant building, examine tiny cells in the laboratory, and view very small details of an object. List four optical instruments that can help the student perform these observations. (4 marks)

SECTION C (15 MARKS)

10. (a)(i) State the Joules Law of heating.

(a)(ii) What value of capacitor could be used to replace a set of 5 μF, 10 μF and 15 μF capacitors connected in series? (05 marks)

(b) Two resistors of resistance R₁ and R₂ are connected in parallel across a potential difference V. Using Ohm's law, prove that the equivalent resistance R of the combination is given by:

¹/R = ¹/R₁ + ¹/R₂ (4 marks)

(c) A 24 V battery is connected to a circuit in which a 4 Ω resistor is connected in series with two 2 Ω resistors connected in parallel.

1. Calculate the equivalent resistance of the combination.
2. Determine the total equivalent resistance of the whole circuit.

THE PRESIDENT’S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

KILIMANJARO REGIONAL COMMISSIONER’S OFFICE

FORM TWO POST MOCK EXAMINATION

 031 PHYSICS

2:30 Hours Monday 22^nd September, 2025 

INSTRUCTIONS:

1. This paper consists of section A, B and C with total of ten (10) questions.
2. Answer all questions in the space provided.
3. All writing must be in Blue or black ink except drawing which must be in pencil.
4. Communication devices and any unauthorized material are not allowed in the assessment room.
5. Where necessary the following constants may be used:

1. Acceleration due to gravity, g = 10m/s² 
2. π= 3.14

SECTION A:( 15 marks)

Answer all questions in this section

1. For each of the item (i) – (x), choose the correct answer from the given alternative and write its latter in the box provided.

i. What should you do before starting an experiment in a physics lab? 

1. Read the procedure and understand the equipment.
2. Start the experiment immediately
3. Ask your colleague to do it for you
4. Leave the lab and come back later. 

ii. When an object floats, what is the relationship between its weight and the buoyant force?

1. Weight is less than buoyant force.
2. Weight is greater than buoyant force.
3. Weight is equal to buoyant force.
4. There is no relation

iii. What type of the force is exerted by a stretched string or wire? 

1. Gravity.
2. Friction.
3. Normal force.
4. Tension 

iv. How does a hydrometer measure the density of the liquid? 

1. By measuring the volume of the liquid.
2. By measuring the weight of the liquid.
3. By measuring the depth to which it sinks in the liquid.
4. By measuring the temperature of the liquid

v. What happens to the surface tension of the liquid when temperature of the liquid increases?

1. It increases.
2. It decreases.
3. It remains the same.
4. It becomes zero.

vi. What is the relationship between pressure and area?

1. Directly proportional
2. Inversely proportional
3. No relationship
4. Exponentially proportional

vii. What is the characteristic of sustainable energy resources? 

1. They are finite and will eventually run out.
2. They are renewable and can be restored naturally.
3. They are expensive and inefficient
4. They are only suitable for small-scale energy production.

viii. What happens to the potential energy of as object as it falls from a height? 

1. Potential energy increase and kinetic energy decreases.
2. Potential energy remains the same and kinetic energy decreases.
3. Potential energy decreases and kinetic energy decreases.
4. Potential energy decreases and kinetic energy increases

ix. The process by which a charged object can transfer its charge to another object is called;

1. Conduction.
2. Induction.
3. Polarization
4. Insulation.

x. A structure is in equilibrium when the sum of all external forces and moments acting on it is

1. Equal to the weight of the structure.
2. Equal to the reaction at the supports
3. Zero.
4. Maximum.

Answers:

2. Match the items in list A with correct responses with items in list B.

Answers:

SECTION B (70 Marks)

Answer All questions in this section 

3. (a) State three applications of principle of moment.

(b) A uniform balance see saw CD has length of 4m. A man whose weight is 800N and his wife with weight 600N sit at each the end of the see saw C and D respectively.

1. Find the clock wise moment
2. Find the ant clock wise moment.
3. State whether the see saw will be in equilibrium or not. give reason for your answer.
4. Where should their son whose weight is 400N sit so that all three of them can be able to balance the see saw?

4. (a) Doctor Roney of KCMC observed that the temperature of the of his patient was 95⁰F. Change this temperature into kelvin scale.

(b) Why pure water is not suitable for use as thermometric liquid. Give four reasons.

5. (a) “The relative density of Aluminum is 2.7.” what does this statement means?

(b) A object weighs 10N in air and 8N when immersed in a liquid. If the weight of the object in water is 7N what is the relative density of the liquid.

6. (a) Assume you are a mechanical engineer, give two advices to boy at the village who is making the wheel barrow to improve efficiency of his wheelbarrow

(b) A simple machine having a velocity ratio of five requires 600J of energy to lift a load of 300N through the height of 1M. Calculate

1. The effort applied.
2. The efficiency.

7. (a) With the help of diagram distinguish between parallel beam, diverging beam and converging beam of light.

1. Parallel beam.
2. Diverging beam.
3. Converging beam

(b) Two plane mirrors A and B are placed 4m apart. A boy stands between the two mirrors at a distance 1m from mirror A. Find the distance between the first two images formed.

8. (a) Distinguish between fundamental force and nonfundamental force. Give three examples in each.

(b) (i) State Hook’s Law.

(ii) A spring extends by 0.2m when a 4kg mass is hung from it. What mass should be added so that the spring will give the extension of 0.5m.

9. (a) “Acceleration due to gravity is 10m/s²”. What does this statement mean?

(b) Study the velocity-time graph below and find answer the questions that follows:

1. Calculate the acceleration of the motion.
2. Calculate the deceleration of the motion.
3. Calculate the distance traveled when the car was decelerating.
4. Calculate the average velocity of the motion.

SECTION C (15 Marks)

10. (a) You are a science student how do you use your knowledge of electricity to reduce the value of resistance of wire, State two methods.

(b) Derive the mathematical equation for Ohm’s law.

(c)Two resistors of 5Ω and 4Ω are connected in series and their combination is connected across the terminal of the battery. The voltmeter connected across the 5Ω resistor read 10V.

1. Draw the circuit diagram to illustrate the above information.
2. Find the current through 4Ω resistor.
3. Find the potential different across the terminal of the battery.

Student`s Assessment Number . . . . . . . . . . . . . . . . . . . . . . . .

PRESIDENT'S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

MADABA DISTRICT COUNCIL

FORM TWO MADABA MOCK EXAMINATION

 031 PHYSICS

TIME: 2:30 Hours July 18^th , 2025am

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of eleven (10) questions.
2. Answer all questions in the space provided.
3. All writing should be in blue or black ink, except for diagrams which must be in pencil.
4. Communication devices and any unauthorized materials are not allowed in the assessment room.
5. Write your number at the top right corner of every page
6. Where necessary the following constants may be used

1. Acceleration due to gravity g = 10 m/s²
2. π = 3.14 (iii).Density of water is 1000 kg/m³ or 1 g/cm³

SECTION A (15 marks)

Answer all question in this section

1. For each of the items (i) – (x) choose the correct answer from among of the given alternatives and write its letter beside the item number in the booklet provided

i. A boy wants to lift a bucket full of water using a handle of metal. Which form of a handle should he use to lift the bucket comfortably?

1. Thick handle. 
2. Thin handle. 
3. Long handle. 
4. Sharp handle

ii. A bus which is heavily over loaded on its basement carrier is unlikely to overturn because: - 

1. It will run faster downhill 
2. Its base area is increased
3. Its weight balances with the reactions 
4. Its center of gravity is lowered

iii. When a body of mass 500 kg is lifted to a height 10 m above the ground it possesses the energy known as

1. Kinetic energy 
2. Chemical energy 
3. Potential energy 
4. Equilibrium energy

iv. What is usefulness of laboratory rules when carrying out experiments in the physics laboratory?

1. Making students enjoy science 
2. Helping students conducting experiment freely
3. Ensuring safety in the laboratory 
4. Enhancing communication with other technicians.

v. Why do beans seem swell up when soaked in water for overnight?

1. Due to diffusion 
2. Due to capillary action 
3. Due to adhesive force 
4. Due to osmosis

vi. A moment of force of 360 Nm is formed when a force of 120 N is applied at right angle on the end of a spanner. How long is the spanner?

1. 30m, 
2. 3m 
3. 0.33m 
4. 3.3m

vii. Two capacitors of 0.6𝜇𝐹 and 0.3 𝜇𝐹 are arranged in series. The equivalent capacitance is: -

1. 0.2 𝜇𝐹 
2. 0.9 𝜇𝐹 
3. 0.3 𝜇𝐹 
4. 0.18 𝜇𝐹

viii. The weakest force among the four fundamental forces is:-

1. Electromagnetic force 
2. Gravitational force 
3. Weak nuclear force 
4. strong nuclear force

ix. The apparent weight of a body is:

1. Obtained as a spring balance is immersed in water
2. Obtained as the body is totally immersed in a fluid
3. Is the apparent loss of weight
4. Obtained as a spring balance suspended in air

x. If you plot a graph of tension against extension, what does the slope indicate?

1. Spring constant 
2. elastic limit 
3. tension 
4. Extension

ANSWERS

2. Match the items in List A with the correct responses in list B by writing the letter of the correct response besides the item number in the table below.

Answers

SECTION B (70 marks) 

Answer all questions

3. a) Briefly explain the following terms as applied in in magnetism. (02 marks)

1. Magnetic field
2. magnetic material

b) State four application of earth’s magnetic field (04 marks)

c) State the law of polarity and illustrate it using sketch diagram. (04 marks)

4. (a) Explain why trucks carrying very heavy loads are fitted with many tyres. (03 marks)

(b) A metal box of dimensions 0.5m × 0.4m ×0.02m has a mass of 8Kg.Calculate

1. The maximum pressure it exerts on a flat surface (03.5 marks)
2. Minimum pressure it can exert on a level surface (03.5 marks)

5. (a) Suppose you find your classmate along the road pushing a bicycle and it accelerated, but when pushed a car, it failed to move. Why your classmate managed to push a bicycle rather than car? (03 marks)

(b) (i) State Newton’s second law of motion. (02 marks)

(ii) A body of mass 80kg was pushed by a constant force of 50N for 6seconds. Find the velocity acquired by the body. (05 marks)

6. (a) What is the difference between retardation and acceleration (02 marks)

(b) Lazaro started moving the car from rest and the car accelerated uniformly at the rate of 4m/s² for 5s and maintained a constant velocity for 230s. Afterwards he applied the brakes and the car retarded uniformly to rest in 3s.

1. Sketch a graph of velocity against time for the motion. (03 marks)
2. From the graph determine the distance travelled. (05 marks)

7. (a) Students in class were arguing on some parts of a car but then they said and agreed that the efficiency of the machine is always less than 100%. Now what do you think was the reason that implied to their agreements? (02 marks)

(b) A block and tackle system has 5 pulleys. It is used to raise a load of 60,000N, if the efficiency of the machine is 90%.

1. Draw a diagram showing the setup (04 marks)
2. Calculate the effort used to raise the load. (04 marks)

8. (a) Katanyi is a form one student was in contradiction on how to differentiate the temperature and the heat. You as a form two student make the him clear by giving him three differences. (03 marks)

(b) Two object A and B are identical in size and type but possess different temperatures of 10 °C and 50 °C respectively. If the two objects are placed in contact with each other they will come to thermal equilibrium. What do you think their common final temperature will be? (03 marks)

(c) Briefly explain how a thermometer measure temperature. (04 marks)

9. (a) Suppose that you have selected among the student to give various example of energy and how they are generated, now you are required to provide two difference between wind energy and the hydroelectric energy. (04 marks)

(b) A physics teacher at a school heard a form one students who were discussing about solar energy. They agreed that solar energy is useless. As a form two student argue against the conclusion made by form one students as heard by the teacher. Use three points (06 marks)

SECTION C (15 MARKS)

Answer question ten (10)

10. Form two student at Mabatini secondary school, were asked by their teacher to prepare electrical compounds and instruments for an experiments to determine the relationship between voltage and the rate of flow of charge between the circuits. How can you assist them to:

(a) Provide electrical compounds that can be applied to accomplish them experiment (06 marks)

(b) Illustrate a well simple electrical circuit that will be suitable for the experiment given (04 marks)

(c) Three resistor of 2Ω, 4 Ω and 6 Ω are connected in series to a battery of e. m. f 24V and have negligible internal resistance. Find the current flowing in the circuit. (05 marks)

THE UNITED REPUBLIC OF TANZANIA PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT 

FORM TWO MOCK II EXAMINATION CODE

 031 PHYSICS

TIME: 2:30 Hours May, 2024

INSTRUCTION

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all questions in the spaces provided.
3. Section A and C carry fifteen (15) marks each, Section B carries seventy (70) marks.
4. All writing must be in blue or black ink except drawings which must be in pencil.
5. All communication devices, calculators and any unauthorized materials are not allowed in the Mock Assessment room.
6. Write your Mock Assessment Number at the top right corner of every page.
7. Where necessary the following constants may be used: (i) Acceleration due to gravity, = 10 N⁄kg  (ii) Density of water = 1g /cm³ or 1000kg⁄m³

SECTION A (15MARKS)

Answer all questions in this section.

1. For each of the items (i)-(x), choose the correct answer from the given alternatives and write its letter in the box provided. (10 marks)

(i)What is the name given to the study of weather and climate which relates greatly with physics as its instruments such as rain gauge and wind vane use principles of physics?

1. Astronomy
2. Geophysics
3. Meteorology
4. Solar system

(ii) Which of the following is one of the importance of First Aid in the physics laboratory?

1. First Aid prevents risk of electric shock to a student.
2. First Aid promotes recovery to a victim by bringing hope
3. First Aid is a real treatment to a seriously injured person in the laboratory
4. First Aid promotes loss of unconsciousness to a fainted person

(iii) The Voltmeter sketched below indicates an error because its pointer reading is not at zero mark before measurement or before the voltmeter is connected in a circuit. Which type of error is this?

1. Parallax error
2. Human error
3. Zero error
4. Instrumental error

(iv) A body weighs 3.6N in air and 2.4N when full immersed in water. What is the density of the body in g/cm³

1. 2.00
2. 1.40
3. 0.80
4. 3.00

(v) Why a gas can be compressed into a small space such as cylinder but a liquid cannot?

1. The distance between molecules of a gas is greater than that of a liquid
2. The molecules of a gas attract each other more strongly than that of a liquid.
3. The distance between molecules of a gas is smaller than that of a liquid.
4. A gas cannot be seen by naked eyes but it can be just felt.

(vi) A person standing between two parallel mirrors fixed on the two opposite walls of a shaving salon observes many of his images. Why this happens?

1. The angle between parallel mirrors is 90 forming 3 images of the object between them.
2. The angle between parallel mirrors is forming multiple images of the object between them.
3. The number of images are only 2.
4. Nothing happens.

(vii) What charge is stored in a capacitor of capacitance 200µF connected across the potential difference 10V?

1. 2 × 10^-4 C
2. 2C
3. 2000C
4. 2 mC

(viii) What is the name given to any substance that has mass and can occupy space?

1. Universe 
2. Mass
3. Energy 
4. Matter

(ix) Which abstract physical quantity without it there is no work?

1. Energy
2. Work
3. Power
4. Pressure

(x) Why do beans seem to swell up when soaked in water for overnight?

1. Due to diffusion
2. Due to capillary action
3. Due to Adhesive force
4. Due to Osmosis process

ANSWERS

2. Match the descriptions of the terms used in forces in List ‘A’ with the corresponding concepts used in forces in List ‘B’ by writing a letter of the correct response below the item in the table provided. (5.marks)

ANSWERS:

SECTION B (70 Marks)

Answer all questions in this section

3. (a) Suggest three (3) methods used to retain magnetism in magnets from being lost for a long time: (06.marks)

(b) Analyze three (3) cards which use magnetism to store information or data in the modern technological life. (03.marks)

4.(a) It is more difficult to balance a nail on its tips than on its base. Explain why (04.marks)

(b) A uniform metre rule (100cm long) is pivoted at 40cm from its one end. If 40g mass is suspended at 20cm from the fulcrum (the knife edge) to balance the metre rule horizontally, what be the mass of the metre rule? (07.marks)

5. (a) Abu is a Form Two student. When he studies about simple machines, he gets an idea that they are there to simplify work, but he confuses their two concepts of “Mechanical Advantage (M.A)”, and “Velocity Ratio (V.R)”. Assist him to clarify these two concepts. (02.marks)

(b). A machine having a velocity ratio of 5 requires 600J of work to raise a load of 400N.If the load moves a distance of 0.5m, Calculate.

1. Mechanical advantage (04.marks)
2. Efficiency of machine (02.marks)
3. Explain the type of machine is ideal or non-ideal machine? (02.marks)

6. (a) Form Two student were performing a common experiment on taking measurements of certain physical quantities and eventually they came up with different results. Suggest three (3) ways they could use to avoid those deviations (06.marks)

(b) Carefully observe and study the following figure below specifically designed to be most used in the laboratory

1. What is the name of the instruments above? (01.marks)
2. Write down the accuracy of this instruments in term of cm or mm. (01.marks)
3. You are laboratory technician in Physics laboratory, tell us only one use of the instrument above in the laboratory. (02.marks)

7. (a) A man weighing 70kg pushes a vertical wall 2m high but the wall doesn’t move. What is the work done of the man? (02.marks)

(b) A mango of 0.2kg mass takes 0.5 seconds to fall freely from its mango tree, to the ground, a vertical distance of 5m. calculate

1. The kinetic energy possessed by the mango on the ground. (03.marks)
2. The maximum speed of the mango. (03.marks)
3. The power developed by the mango on the ground (02.marks)

8. A student wants to investigate the variation of pressure in a liquid with depth of the liquid. He uses a tin containing water with depth 0.5m. He then punches the tin to make two holes A and B. Hole A is at 0.1m below the surface of water and hole B is at 0.4m from the surface of water as shown in the figure below:

1. On your opinion, from which hole on the tin will the water spurt the farthest? Why? (04.marks)
2. Re-draw the tin holding water shown above and show how pressure in liquid (water) varies with depth of hole A and hole B. hence, state this variation. (06.marks)

9. (a) Briefly explain why a drop of honey on glass sheets remains spherical while a drop of water spreads faster (02 marks).

(b) What do you understand by the following terms?

1. Brownian motion (02.marks)
2. Kinetic theory of matter (02.marks)

(c) (i) What is the relationship between the tension and extension of loaded elastic Materials (02 marks)

(ii) State the law that governs the above (02 marks)

SECTION: C (15 Marks)

Answer question ten (10)

10. (a) Draw the circuit symbol of each of the following electric components: (09.marks)

CHRISTIAN SOCIAL SERVICES COMMISSION- (CSSC)

WESTERN ZONE

FORM TWO JOINT EXAMINATION

CODE: 011  PHYSICS

TIME: 2:30 HRS   Date: 28^th August, 2023

INSTRUCTIONS

1. This paper consists of sections A, B, and C with a total of ten (10) questions
2. Answer all questions in section A and B and two questions from section C
3. Section A and C carries fifteen (15) marks, section B carries seventy (70) marks
4. All answers must be written in blue or black ink
5. All answers must be written in the space provided
6. Where necessary the following constants may be used

i. Acceleration due to gravity g=10^m/s²

ii. Density of water = 1.0g/cm³ or 100kg/m³

iii. Pie,

7. Cellular and any other authorized material are not allowed in the examination room.

8. Write your Assessment Number at the top right corner of every page

SECTION A: (15 MARKS)

Answer all questions in this section

1. For each of the items i-x, choose the correct answer from the given alternatives and write its letter in the box provided.

i. Which one of the following explanations does not describe the importance of studying physics?

A. It enables us to answer many questions concerned with physical properties of matter

B. It enables different people to acquire skills that require in different professions

C. It enables us to design and manufacture different items

D. It develops awareness of conserving environment

ii. The same body is immersed in liquid A and then in liquid B the extent to which the body sinks in liquid B is less than in liquid A. what conclusion can be derived from such observation?

A. The density of liquid A is more than the density of liquid B

B. The density of liquid B is more than that of liquid A

C. The density of solid body is less than that of the liquid

D. The density of liquid A is the same as that of liquid B

iii. Which of the following equilibrium condition apply to walking?

A. Un stable equilibrium

B. Stable equilibrium

C. Neutral equilibrium

D. Both stable and unstable equilibrium

iv. A student gets an electric shock and falls down unconscious in a physics laboratory. Which of the following would you do first to help the victim?

A. Administers breathing exercise

B. call the physics teacher

C. call other students

D. call a medical doctor

v. The P.d of 1.5v is read on a voltmeter when a current of 0.5a is on the alumeter. what is the resistance of the conductor

A. 1.5 Ω

B. 0.5 Ω

C. 3 Ω

D. 0.3 Ω

vi. In a loading a lorry, a man lifts boxes each of weight 100N through a height of 1.5m. If he lifts 4 boxes per minute, the average power the man is working is ;

A.  100 watt 

B.   10 watt

C.   600 watt

D.  37.5 watt

vii. An object weights 12N in air and 9N when totally immersed in water. the relative density is___________

A.

B.

C. 3

D. 4

viii. In an electrical cell while in use, the change in energy is from:

A. Electrical to mechanical

B. Chemical to mechanical

C. Electrical to chemical

D. Chemical to electrical

ix. A person dealing with the branch of science that deals with the study of matter, energy and mutual interactions between them is called_______

A. Chemist

B. Pilot

C. Physicit

D. Physics

x. A cooking oil was mixed with water and poured into a measuring cylinder and allowed to settle for three minutes, which phenomenon will be observed?

A. Cooking oil floats over water

B. Water floats over the oil

C. Water and oil completely mixed up

D. Cooking oil is solute in water

2. Match the items of list A with the most correct responses from list B to make the correct statement.

SECTION B: (70 marks)

Answer all questions in this question)

3. (a) One among of the potential project in Tanzania is the construction of

Mwalimu Nyerere Hydro-electric power. In order to produce more electricity. Briefly describe any four (4) applications of energy generated from this project

(b) What are sustainable energy sources?

4. The rocket moves the earth to other planet called mars. If it weights 980N on the earth and on the Mars weights 588N. State two reasons why the weight of the rocket on the surface of the earth to the planet Mars decreased?

(b) A ship sails from Lake Tanganyika to Lake Victoria. Where does it float higher? explain

5. (a) The school administration has hired two cranes A and B to be used in the project of constructing four classrooms. Each crane lifts objects having masses of 200 kg to a height of 12m.Crane A lifts its objects in 10 seconds while crane B requires 15 seconds to lift its object. The two cranes lift the objects at a constant speed.

(b) With reasons, state and show which crane is more powerful?

6. Aman’s home is 1.5km due west of his school in the morning he walks along the straight path to school. In the evening he decided to take same path to go back home.

i. What is the total distance covered by Aman in his journey?

ii. What is the total displacement covered by Aman for his journey?

(b) (i) State two similarities between distance and displacement

(ii) State two differences between distance and displacement

7. (a) State two advantages of wind energy over the oil energy.

(b) The figure below shows a pulley in which an effort of 30N is used to lift load of 90N. Determine:

i. Mechanical advantages

ii. Velocity ratio of the pulley

8. (a) A uniform half meter rule is pivoted at the 20cm mark and balances horizontally when a body of mass 30g is hung at the 5cm mark from one end.

Calculate the mass of the rule

(b) Draw the diagram of the arrangement in (a) above

(c) Calculate the pressure due to column of mercury 750 mmHg High. Given the density of mercury equals 13600 kg/m³

9. Explain briefly why the efficiency of a machine is always less than 100%

(b) A load wheel barrow weighing 800N is pushed up an incline plane by a force of 150N parallel to the plane. If the plane rises 50cm for every 400 cm length of the plane. Find:

i. The velocity ratio

ii. The mechanical advantage

iii. The efficiency of the machine

SECTION C: (15 marks)

10. (a) Suppose you are asked by the physics teacher to prepare electrical components and instruments for an experiment to verify ohm’s law i. Give five (5) components that can be used in the experiment ii. Draw a clear simple circuit which will be suitable for the experiment by using components and instruments you mentioned in 10(a) (i) above

(b) Study the circuit diagram in the figure below then answer the questions that follow:

i. If the current flowing in 5Ω resistor is 2A calculate then current flowing in 10Ω

ii. Potential different across 20Ω

THE UNITED REPUBLIC OF TANZANIA PRESIDENT'S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

MOROGORO FORM TWO REGIONAL ASSESSMENT PHYSICS

CODE: 031

TIME: 2:30 HOURS YEAR: 2023

INSTRUCTIONS

1. This paper consists of section A, B and C with a total of ten (10) questions. Answer all questions.
2. All writing must be in blue or black ink except drawings which must be in pencil.
3. Where necessary use the following constants:

i) Acceleration due to gravity, g= 10m/s² or ION/kg ii) Density of water =1000kg/m ³

SECTION A (15 Marks)

1. For each of the items (i) - (x), choose the correct answer from the alternatives and write its letter in the box provided.

i) Why Physics, Chemistry and Biology are natural science subjects?

A. They need practical work only

B. They need only theory for learning

C. They need only observation

D. They need practical and theory work for learning

ii) A Doctor buys petrol from a petrol filling station. What does he/she pay for?

A. Mass C. Density

B. Volume D. Pressure

iii) The standard units of the basic quantities in measurements are as follows;

A. Kilogram, cubic metre and minutes

B. Metre, cubic centimeter and hours

C. Kilogram, metre and second

D. Centimeter, hours and cubic millimeter

iv). On the moon, as astronaut cannot drink lemonade with the help of a straw because; -

A. Acceleration due to gravity on the moon is less.

B. Lemonade evaporate quickly on the moon.

C. Increases due to area.

D. There is no atmosphere on the moon.

v) Relative density of a substance is 2.5. What is its density?

A. Equal to the density of water

B. Greater than density of water

C. Equal to the volume of water displaced

D. Less than density of water

vi). Which of the following forces can cause the mosquito larvae to float on water?

A. Surface tension C. Friction force

B. Adhesive force D. Cohesive force

vii) If the angle between two plane mirrors is 60 ⁰ what will be the number of images?

1. 2
2. 3
3. 4
4. 5

viii) What name is given to the process in which a parallel beam of incident light is reflected as a not parallel beam of light?

A. Diffuse reflection

B. Internal reflection

C. Regular reflection

D. Angular reflection

ix) Which of the machines below is a first-class lever?

A. Scissor C. Shovel

B. Wheelbarrow D. Tweezer

x) A current of I.OA passes in the circuit as shown in the figure below. What is the numerical value of resistance Q?

A. 1.5

B. 3.5

C. 4.5

D. 2.5

2. Match each of the following devices from LIST A with the corresponding useful form of energy the devices are designed to produce from LIST B by writing a letter of the correct response below the item in the table provided.

SECTION B (70 Marks)

Answer all questions

3. a) Identify three equations of motion in the straight line.(3 marks)

b) i) Briefly explain the motion of an object under gravity by taking an example of a stone thrown straight up into the air.

ii) A car moving with a velocity of 60km/h is uniformly retarded and brought to rest after 10 seconds. Calculate its acceleration. (4 marks)

4. a) Use the concept of pressure to explain why during construction of a railway, wide wooden or concrete sleepers are placed below the railway tracks? (3 marks)

b) i) What are the three factors does pressure in liquid depend on? (3marks)

ii) Calculate the pressure exerted on a diver at a depth of 20m below the surface of water in the sea. (4 marks)

5. a) i) The passengers sitting in a moving bus tend to fall forward when the bus suddenly stops. Explain why? (3marks)

ii) State the law governing the phenomenon happened in 5(a)(i) above. (3 marks)

b) Differentiate elastic collision from inelastic collision by considering the way billiard balls collide on the pool table game. (4 marks)

6. a) The figure 1 below shows the magnetic field between the poles of two bar magnets.

Figure 1

i) Explain what is meant by the term represented by letter X? (4 marks)

ii) Indicate the polarity of A, B, C and D. (4marks)

b) A student wants to store his two bar magnets for future use. Advise him two methods that he can use to store the magnets for effective and durable use of their magnetism. (2 marks)

7. a) What are the conditions for the body to be in equilibrium?

b) i) Why mechanics prefer to use a spanner of longer stem than spanner of shorter stem to tighten or loosen a nut on a bolt? (3 marks)

ii) The moment of a force about a point is 12000Nm. If the magnitude of force is 6000N, find the perpendicular distance between the point and the line of action of force. (3 marks)

8. a) (i) A pulley is a simple machine that is made up of a wheel and a rope, chord or chain. Identify three types of pulley.

(ii) Draw a diagram of combination pulley system which gives velocity system of 4.0.

b) The hydraulic press multiplies an applied effort using the pressure of a liquid or gas. List three applications of the hydraulic press in our daily life. (3 marks)

9. Two girls Vick and Vero were discussing on the properties of light energy. Assist them four properties of light energy. (4 marks)

b) With the aid of a well labelled diagram, state the laws of reflection. (6 marks)

SECTION C (15 Marks) 

Answer all questions

10. Form two students were given the following electrical components by their Physics Teacher so that to construct a simple electric circuit: Two cells, a switch, an electric lamp, an ammeter, a voltmeter and pieces of connecting wires.

a) Draw a suitable electric circuit by using all the components given.(5 marks)

b) Explain an application of each component used in the circuit drawn in 10 (a) above. (6 marks)

c) Suppose the students wanted to construct the circuit of lower resistance, advise them which factors they should consider during constructing the circuit. (4 marks)

PRESIDENT’S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT  MVOMERO DISTRICT COUNCIL FORM TWO MOCK EXAMINATION

CODE: 031 PHYSICS

TIME: 2:30 Hours MAY-2023

Instruction

1. This paper consists of section A, B and C with a total of ten (10) questions.
2. Answer all questions in the space provided
3. Section A and C carries fifteen (15) marks each while section B carries seventy (70) marks.
4. All writing must be in blue or black ink except drawings which must be in pencil.
5. All communication devices, calculators and any unauthorized materials are not allowed in the assessment room.
6. Write your Assessment Number at the top right corner of every page.
7. Where necessary the following constants may be used.

1. Acceleration due to gravity, g = 10m/s²
2. Density of water = 1000Kg/m³
3. Density of lead=11.3g/cm³
4. Pie, π=3.14

SECTION A (15 MARKS)

Answer all questions in this section

1. For each of the items (i)-(x), choose the correct answer from the given alternatives and write its letter in the box provided

(i). A needle may float on a clean water but sinks when some detergent is added to water because the detergent.

1. educes the density of water
2. Increase adhesive force between the needle and water molecules.
3. Lowers the surface tension of water.
4. Makes water surface slippery.

(ii) A racing car turnaround corner safely than a tall bus can do because

1. The bus has wider wheel base
2. The bus is heavier compared to a racing car
3. The racing car has lower centre of gravity
4. The racing car has higher centre of gravity.

(iii) Which of the following materials can magnetically made strong?

1. Nickel and Copper
2. Steel and Brass.
3. cobalt and Iron
4. Cobalt and Copper

(iv)A house building contractor fitted window glass panes which someone cannot see through but the room are full illuminated with light. These types of glass pane materials are said to be

1. Dim
2. Opaque 
3. Transparent
4. Translucent

(v) Why the mechanical advantage is less than three in a single rope three pulleys system?

1. Because the effort may vary
2. Due to load rose
3. Because the upper pulley does not move
4. Due to friction on pulleys

(vi) If you are caught outside during a severe thunderstorm, you should

1. Take shelter under the nearest tree
2. Stand under power lines
3. Move to higher ground
4. Hide in a ditch

(vii) A mass of 0.2kg produces an extension of 8cm in a spring. The force required to produce an extension of 6 cm is

1. 0.75N. C. 2.70N
2. 1.50N. D. 24.00N

(viii) Form two students had a trip to Mikumi national park when they entered in a bus most of them fell backwards, when the bus moved forward, their geography teacher told them to be careful. This situation is explained by

1. The unstable equilibrium of the bus
2. The newton’s third law of Motion
3. The newton’s second law of motion
4. The newton’s first law of motion

(ix) Pressure in a liquid is independent of the

1. Density of the liquid.
2. Depth below the surface of the liquid.
3. Pressure exerted on the surface of the liquid above.
4. Cross sectional area and the shape of the vessel containing the liquid.

(x) A student measured the diameter of a wire Using a screw gauge and he repeated the experiment four times and listed the measurements. The correct measurement was

1. 5.3cm
2. 5.32 cm 
3. 5.32 cm
4. 5.3200 cm

2. Match the meaning of the terminologies used in structure and properties of matter in list A With their corresponding terms in list B by writing the letter of the correct answer in the Table provided.

 Answers

SECTION B (70 marks)

Answer all questions in this section

3. (a). State the Archimedes principle

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(b). List down three conditions necessary for a body to float

1. ________________________________________________________________________________________________________________________________________________
2. ________________________________________________________________________________________________________________________________________________
3. ________________________________________________________________________

(c). An object of weight  when immersed in the water it experiences an up thrust of . Calculate the following

1. Real weight

2. Relative density

3. Density of the object in

4. (a) State the principle of moments

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(b)(i) Distinguish between stable equilibrium and unstable equilibrium

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(ii)Mention two conditions necessary for an object to be in equilibrium under action of parallel Forces

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(c) A uniform half –metre rule is freely pivoted at 15cm mark and it balances horizontally when

a body of mass of 40g is hung from a 2cm mark

(i)Draw a clearly labelled diagram to illustrate the forces on a half metre rule.

(ii) Calculate the mass of the rule

5. (a) Give the meaning of the following terms

1. Velocity ratio ________________________________________________________________________________________________________________________________________

ii. Efficiency __________________________________________________________________________________________________________________________________________________________________________

(b).A perfect machine has efficiency of 100% but practically there is no perfect machine why?

__________________________________________________________________________________________________________________________________________

(c )The diagram below shows a box of weight 150N being pulled at a steady speed up by a force of 100N. If the height of the plane is 2m above the ground and the length of the plane is 4m.

Calculate

1. Mechanical advantage

2. Velocity ratio of the machine

6. (a) State Paschal principle as it applied in pressure

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(b) State any four application of atmospheric pressure

1. ___________________________________________________
2. ___________________________________________________
3. ___________________________________________________
4. ___________________________________________________

(c). Briefly explain why the woman wearing shoes with pointed heels is more likely to cause damage to the wooden floor than the elephant.

______________________________________________________________________________________________________________________________________________________

(d). What will be the pressure due to a column of water of height  if the density of water is .

7. (a) A form two students performed an experiment on determination of the acceleration due to gravity by using an iron metal ball. Briefly describe the energy changes when the bob of a Simple pendulum swings from one side to another.

2. A pump raises 100kg of water through a height of 30m in 10sec. What is the power developed by the pump.

8. (a) With aid of diagram, state the laws of reflection of light.

(b) List four properties of the image formed by a plane mirror.

(i)   

(ii) 

(iii) 

(iv) 

(c) Determine number of images that can be formed when two plane mirrors placed at

2. Parallel to each other

9. (a)Explain how the area of plates and distance between plates affect the capacitance of the

Capacitor

(b)A capacitor of capacitance 250is allowed to charge until the potential difference between its Plates is 10v. How much charge accumulated on the plates during the charging process?

(c). Draw the sketch of a large and well labeled gold – leaf electroscope.

SECTION C (15 MARKS)

Answer questions ten (10)

10.(a) State Ohm’s law

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(b)The circuit diagram below that shows the current through the 6 Ω resistor is 2.5 A.

(i) What is the magnitude of the voltage from the power supply?

3. Determine the current through the 8 Ω resistors.

(c).The form two students are given a set of materials in physics Laboratory as following Rheostat, voltmeter, ammeter, fixed resistor, switch and a cell to perform experiment aimed to verify ohm’s law. Draw a complete circuit diagram to show the arrangement such that the current can flow.

Candidate's Examination Number. . . . . . . . . . . . . 

PRESIDENT'S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT 
KILIMANJARO REGION MOCK FORM TWO EXAMINATION

CODE: 031 PHYSICS

TIME: 2:30 HRS MAY 2023 

INSTRUCTIONS

1. This paper consists of sections A,B and C with a total of ten (10)questions.
2. Answer all questions in all sections
3. Sections A and C carries fifteen (15) Marks each and section B carries seventy (70) Marks
4. Write your examination number at the top right corner of every page
5. All answer must be written in the space provided
6. All writing must be in blue or black ink EXCEPT drawing which must be in pencil
7. Cell phones and calculators are not allowed.
8. Where necessary the followings constants may be used:-

• Density of water=1g/cm³ or 1000kg/m³
• Density of mercury-13.6g/cm³ or 13600kg/m³
• Acceleration due to gravity=l0m/s²

SECTION A (15 Marks)

1. For each of the following items (i) to (x), choose the correct answer from the given alternatives and write its letter in the space provided.

i. In the given physical quantities units below, which one is the derived unit? 

1. Kilogram
2. Ampere
3. Kelvin
4. Newton

ii. Peter and Marry were performing an experiment in the physics laboratory suddenly, Peter got an electric shock and fall unconsciously, Marry scared and run away. What was supposed to be done by Marry instead of running away?

1. To call the electrical technician of the school
2. To contact the school medical doctor
3. To call other students for help
4. To administer breath exercise

iii. Juma placed an object of weight 500N on water. The object was seen totally floating on water of density 1000 kg/m³, the magnitude of the buoyant force acting on the object is:

1. 5 N
2. 500 N
3. 250 N
4. 400 N

iv. Lubricants like oil and grease are used to reduce friction in the moving parts of machinery; but why grease is much preferred than oil? what can you conclude about the

v. Swimmers prefer much to swim in sea water than in fresh water. What can you conclude about this?

1. The sea water is denser than fresh water.
2. The density of sea water is the same as that of the swimmer.
3. The fresh water is denser than sea water
4. The sea water and fresh water have the same density.

vi. The process of aligning the magnetic dipoles in all magnetic domains in the same direction is termed as:-

1. Magnetization
2. Induced magnetism
3. Demagnetization
4. Conduction stroking

vii. In the concept of pressure the expression P ∝ 1/_A means?

1. On decreasing area, pressure decrease
2. On decreasing pressure, area also increase
3. On increasing area, pressure decrease
4. on increasing area, pressure remain constant

viii. Diffusion occurs more quickly in a gas than in a liquid because:

1. The liquid contains a layer on its surface
2. The gas contains semi-permeable membrane
3. The gas molecules is small in size compared to the liquid molecules
4. The speed of molecules in gas is greater than in liquid

ix. A Mango of mass 0.6kg falls from a mango tree which is at the height of 6m from the ground .The maximum kinetic energy acquired by the mango when it is about to hit the ground is:

1. 0.36J
2. 3.6J
3. 36J
4. 360J.

x. When charging an object by friction, the particles which are transferred are:

1. Electrons
2. Protons
3. Electrons and protons
4. Neutrons 

Answers

2. Match the type of forces in List A with their corresponding effects on object in List B by writing the letter of the correct responses beside the item number in the table provided

Answers

SECTION  B (70 Marks)

3. (a) Differentiate ferromagnetic materials From paramagnetic materials by giving two typical examples of each. (04 Marks)

(b) As a student who has the knowledge of magnets, how can you advice a person who is doing the business of selling magnets the three appropriate ways of storing magnets so that they can last longer. (06 Mark)

4. (a) What is the function of the constriction in a clinical thermometer? (03 Marks)

(b) (i) A certain nurse was seen sterilizing a clinical thermometer with boiled water, which is dangerous to the thermometer. Giving reason explain why this is too dangerous? (03 Marks)

(ii) Juma has two cups of milk, cup A and cup B of the same volume, but possessing different temperatures, of 10⁰C and 50⁰C respectively. Juma was told by her mother to mix the milk in a tall jar so that to get an equilibrium temperature suitable for cooking "Vitumbua". What will be the equilibrium temperature in Kelvin after mixing? (04Marks)

5. (a) Explain why goal keepers while catching a ball always extends their hands forwards? (02 Marks)

(b) (i) State the four applications of the earth"s magnetic field (04 Marks)

(ii) A trolley of mass 20 kg loaded with a bag of maize of mass 100 ke, rest on a smooth horizontal track. If the two opposing forces of magnitude 55 N and 90 N are applied to the trolley as shown below.

Find the acceleration of the trolley (04 Marks)

6. (a) Form two students were asked by their physics teacher to give One example of scalar quantity. One student responded fast by saying "acceleration" and he deffended his answer by saying, because acceleration is the rate of change of speed. flow will you correct this student? (04 marks)

(b) A ball is dropped from a height of 20m above the ground. It hits the ground in 2s and bounces back up to a height of 12.7m in 1.6 s. What is the average veleocity for the entire motion? (06 Marks)

7. (a)In simple machine the human arm is said to be a distance magnifier. What does this statement mean? (03 Marks)

(b) The figure below shows a simple hydraulic press used to compress a bale. The cross section areas of A and B are 0.002 m² and 0.3 m² respectively.

Calculate the:

i. Force produced on B compressing the bale (04 Marks)

ii. The mechanical advantage (MA) of the press (03 Marks)

8. (a)Imagine you are given a task to design a salon using two large plane mirrors. the owner of the salon wants three images only of a customer to be seen in the mirrors when trimming. At what angle could you arrange the two mirrors to meet the owner needs? Show clearly your approach (04 Marks)

(b)The figure below shows a uniform plank with dimensions 3.0 cm wide, 0.6 cm thick and 100 cm long. The density of the plank is 2.7 g/cm³.

i. Determine the weight W of the plank (03 Marks)

ii. If the plank is in equilibrium by the forces shown in figure above. Determine the value of F and R (03 Marks)

9. (a) People are warned by Geophysicists not to build houses near geothermal power plants. Give three reasons for this warning. (06 Marks)

(b) Asha was hitting an inflated balloon with a hammer but the ballon did not burst, but when she sticked it with a pin the balloon bursted. How can you explain these two situations to Asha? (04 Marks)

SECTION C (15 Marks). 

10. (a) (i) State the ohms law (02 Marks)

(ii) How does ohm's law explain the fact that the resistance of a conductor depends on the area of cross — section of the conductor? (03 Marks)

(b) (i) Explain why the path of the lightning is not straight but zigzag? (02 Marks)

(ii) Two negative charges were brought close to each other as shown below, re-draw a well diagram to show the magnetic field lines on how these two charges interact, remember to indicate the neutral point. (03 Marks)

(c) Study the circuit below and answer the questions that follow

(i) Calculate the equivalent, resistance (02 Marks)

(ii) What is the reading of the ammeter?(1.5 Marks)

(iii) What is the reading of the voltmeter? (1.5 Marks)

Candidate's Examination No . . . . . . . . . . . . . . . . . . . . . . . 

PRESIDENT’S OFFICE REGIONAL ADMNINSTRATION AND LOCAL GOVERNMENT

LUDEWA DISTRICT COUNCIL

FORM TWO DISTRICT MOCK EXAMINATION 2022

031 PHYSICS

TIME: 02:30HOURS Friday Morning, June 10th, 2022 a.m.

INSTRUCTIONS.

1. This paper consists of sections A, B and C with a total of 10 questions.

2. Answer ALL questions from both sections.

3. All communication devices, calculators and any unauthorized materials are not allowed in the examination room.

4. All writing must be in blue or black ink EXCEPT drawings which must be in pencil.

5. Remember to write your candidate number on both pages at right hand corner of every page.

6. The following constants may be used.

• Density of water= 1g/cm3 or 1000kg/m3.
• Gravitational field strength, g = 10N/kg

SECTION A (15 marks)

Answer all question from this section.

1. For each of the items (i) – (x), choose the correct answer from among the given alternatives and write its letter beside the item number in the answer booklet provided.

(i) Physics subject is very wide to understand it as a whole. Due to that situation, scientists have decided to break it down into several concepts for simplicity of understanding and mastering. As a student who is interested in physics, what is a correct set of concepts for the reasons above?

1. Agrobusiness, mechanics and molecules
2. Heat, optics, mechanics and electricity.
3. Biophysics, chemophysics, geophysics and astrophysics
4. Wave, physics of the atom and radionuclide.

(ii) In one of the following areas, quantitative measurement knowledge plays an important role except.

1. In hospital
2. In agriculture
3. In schools
4. In smell testing

(iii) A physics teacher asked the students to explain briefly things which may cause fire in the physics laboratory. The students tried to answer but some explanations were not correct. Identify the explanations which were not correct.

1. Electrical faults
2. Presence of flammable materials
3. Carelessness in using gas lighter and match boxes
4. The colour of some chemicals supports combustion

(iv) A cooking oil was mixed with water and poured into a measuring cylinder and allowed to settle for three minutes, which one will be the observed phenomenon?

1. Cooking oil floats over water
2. Meniscus of water appeared convex in shape at the surface
3. Water floating on the oil.
4. Water and oil completely mixed up.

(v) If two cars are both travelling at 50Km/h and they collide head on, the effect is similar to a car colliding with a wall at what velocity?

1. 0 km/h
2. 10 km/h
3. 50 km/h
4. 100 km/h

(vi) Thermometer is a device that determine the measure of the kinetic energy that particles of an object possess. Part of a thermometer which prevents mercury from flowing back when temperature falls:

1. Stem
2. Constriction
3. Bulb
4. Neck

(vii) When a large body of experimental evidences support or does not support the hypothesis, what may the hypothesis eventually be considered?

1. Observation
2. Insight
3. Conclusion
4. Law

(viii) A house building contractor fitted window glass panes which someone cannot see through, but the rooms are fully illuminated with light. These types of glass pane materials are said to be:

1. Dim 
2. Opaque 
3. Translucent 
4. Transparent

(ix) The following is a reason why objects in air tend to fall at the same time when they are released from the same height h above the ground level; -

1. They have the same weight
2. There is usually no resistance in the air
3. Acceleration due gravity is the same
4. None of the above

(x) The substance which is lighter has low density and less affected by gravitational force. In comparison with water, the number of times a substance is denser than water is termed as?

1. Density
2. Relative density
3. Volume
4. Mass

ANSWERS

2. Match the items from LIST A with the corresponding responses in LIST B by writing its letter in the box provided.

ANSWERS

SECTION B (60 Marks)

Answer ALL questions from this section.

3. (a) When water and mercury were in two separate measuring cylinders, the teacher asked student to observe the reading in both cylinders. Why does mercury form downward meniscus while that of water forms upward meniscus?

(b) A force of 4 N causes a certain copper wire to extend to 1.0 mm. Find the load that will cause a 3.2 mm extension on the same wire.

4. (a) A student from school a certain school immersed the test tube into a liquid and found it is floating vertically upright. Why a test tube does so?

(b) The diagram below shows on form of man hydrometer used to measure the densities of liquid over the range of 0.8 to 1.0 g/cm3. If the area of cross section of the stem is 0.5 cm2 and the distance between the 0.80 and 100 division is 18cm.

What is the volume of hydrometer below 1.0 graduated mark?

5. (a) (i) Most of us confuses and sometimes misuse the term Energy and power that they mean the same. As a competent student give the difference.

(ii) The ball rebounds to the height less than the original height. Explain briefly why does this happen.

(b) A teacher was demonstrating the motion of the stone of mass 2 kg as it moves vertically upward but he then released it from height of 2m above the ground.

(i) How much of the potential energy at height of 0.5m does the stone possess?

(ii) Determine its kinetic energy at height of 0.5m.

6. (a) In verifying ohms law, the experiment was conducted in a place with variation of physical factors. Describe four (04) factors that affects the flow of current in the circuit?

(b) The circuit diagram below that shows the current through the 6 Ω resistor is 2.5 A.

(i) What is the magnitude of the voltage from the power supply?

(ii) Determine the current through the 8 Ω resistor.

7. (a) (i) When the pulling force is applied to the handle of the door, the hinge acts as the axis of rotation, and the door turns about. What do you understand by the term turning effect?

(ii) When forces are in equilibrium, it means that there is no net force to cause any movement. Describe conditions for parallel forces to be in equilibrium.

(b) A heavy uniform metal beam AB weighting 500kg is supported at its ends. The beam carries a weight of 3000kg at a distance of 1.5m from end A. If the beam is 4m long, determine the thrusts on the supports A and B.

8. (a) (i) During the class session, the teacher introduced the lesson that is ‘Simple Machine’. What do you understand that term?

(ii) Draw a diagram of a single – string pulley system with a velocity ratio of 4

(b) The electric motor of a crane uses 42 000 J of electric energy lifting a pack of eight bags of cement of 25 kg each through a distance of 15 m from the ground to the fourth floor. Calculate the efficiency of the motor during the lifting process

9. (a) When the metal can that containing hot water is closed, and the cold water is poured on it, the can collapses. Why?

(b) In an experiment using Hare’s apparatus, the lengths of methanol and water columns were found to be 16 cm and 12.8 cm respectively

(i) What is the relative density of methanol?

(ii) If the length of methanol column was altered to 21.5 cm what would be the new height of the water column?

SECTION C (15 MARKS)

10. (a) A form two student is in the physics laboratory. He is provided with density bottle, sand, digital balance and water. He is required to determine the density of sand using the instruments provided above, show how will he determine the density of the sand?

(b) In an experiment to determine the density of sand, Sophia obtained and recorded the following results.

Mass of the density bottle, M1 = 200g

Mass of density bottle and sand, M2 = 490g

Mass of density bottle, sand and water, M3 = 550g

Mass of density bottle and water, M4 = 300g

(i) What was the density of sand?

(ii) Determine the relative density of sand.

THE PRESIDENT’S OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

MOSHI MUNICIPAL COUNCIL

SECONDARY EDUCATION EXAMINATIONS SYNDICATE

031 PHYSICS

FORM TWO MOCK EXAMINATION 

Friday 01^st July 2022 Time: 2:30Hours 

INSTRUCTIONS: 

1) This paper consists of sections A, B and C.

2) Answer all questions.

3) All drawings should be in pencil and writing in blue or black pen.

4) Write your names or number on the top right-hand corner of every page.

5) Cell phones and calculators are not allowed in the examination room.

6) Whenever necessary, use the following constants:

• Density of water = 1000kg/m³ or 1g/cm³ • Acceleration due to gravity, g = 10m/s² or 10N/Kg.

SECTION A (30 MARKS)

Answer all questions from this section.

1. For each of the following items (i) – (xx) choose the correct answer among the given alternatives and write its letter beside the item number.

i. An engineer wanted to measure the diameter of a wire to the nearest 0.001cm. which of the following instruments will be used?

1. Metre rule
2. Measuring cylinder
3. Micrometer screw gauge
4. Vernier caliper 
5. Engineer caliper

ii. Which phenomenon explain ability of some small insects to walk over a water surface?

1. Capillarity
2. Adhesion
3. Surface Tension
4. Osmosis

iii. The branch of science in which the relationship between matter and energy is studied is referred to:

1. Biology
2. Chemistry
3. Physics
4. Agricultural science
5. Geography

iv. Which of the following instruments work under the Pascal’s principle of pressure transmission

1. Spring balance
2. Single fixed pulley
3. Inclined plane
4. Hydraulic press

v. The process whereby materials recover the original length after removing the load or force is described as.

1. Plasticity
2. Deformation
3. Elasticity
4. Elastic limit

vi. The term used to describes the ability of an object to float on a surface of liquid is classify as:

1. Floatation
2. Buoyancy
3. Density
4. Pressure

vii) The quantity obtained by taking the ratio of mass per unit volume of a substance is described as:

1. Relative density
2. Density
3. Matter
4. Volume

vii. Which of the following is the process used to descried the action of movement of solvent molecules from high to low concentration through a semi-permeable membrane?

1. Fusion
2. Osmosis
3. Pressure
4. Diffusion

viii. Materials can be twisted into different shapes. Which among the following forces causes twisting of elastic materials?

1. Restoring force
2. Compressional force
3. Stretching force
4. Torsional force

ix. What is the name given to a material which has ability of attracting some other materials?

1. North pole
2. Electromagnet
3. Magnet
4. Marble stone

x. How does depth affect the pressure in liquids

1. Pressure is inversely proportional to depth
2. Pressure is equal to depth
3. Pressure is not equal to depth
4. Pressure is directly proportional to depth 

xi. What among of the following term is used to explain the tendency of a liquid to rise or fall in a narrow tube?

1. Diffusion
2. Capillarity
3. Adhesion 
4. Cohesion

xii. A machine with effort between load and fulcrum belong to which class of lever?

1. First class lever
2. Third class lever
3. Second class lever
4. Fourth class lever

xiii. Which of the following are correct information about the particles on solid state of matter .

1. Are far apart, vibrating and randomly in motion
2. Are closely together, weak force of attraction and stationary
3. Are closely together, vibrating and strong force of attraction.
4. Are slightly far apart, moving randomly and weak force of attraction

xiv. The materials which do not completely allow the light to pass through

1. Transparent
2. Translucent
3. Luminous
4. Opaque 

xv. What happened behind an opaque object when a beam of light falls on it?

1. Umbra
2. Shadow
3. Penumbra
4. Beam

xvi. Form two students asked to identify the presence of charge on an Object which among of the instrument should they use ?

1. Capacitor
2. Resistor
3. Electroscope
4. Gold leaf electroscope

xvii. A resistor of 6Ω connected with 24mv battery. What will be the current in Ampere?

1. 0.004A
2. 40A
3. 12A
4. 4A

xviii. Why it is possible for a bus loaded on top carrier to skid when changing direction at high speed?

1. Because its centre of gravity is at lower position
2. Because its centre of gravity is at centre
3. Because its centre of gravity is at higher position
4. Because it is very stable

xix. What criterion supports that single fixed pulley is a machine

1. Used to lift heavy loads short distance
2. Used to lift light loads to inaccessible point
3. Effort used is less than load
4. Effort used is greater than load 

xx. Which among of the following machine work under the atmospheric pressure principle?

1. Hydraulic brake system
2. Screw Jack
3. A siphon
4. Pressing machine

2. Match the description of electric terms in list A with the correct electric terms in list B by writing a letter of the correct response below the corresponding item number in the table provided

3. Complete each of the following statements by writing the correct answer on the space provided

i. A tendency of an object to fall to the lower level in fluid is called

…………………………

ii. An upward force exerted on object when it is totally or partially immersed in fluid is known as ……………………

iii. A product of force and perpendicular distance is known as …………………………

iv. A percentage ration of work out put to work input is known as

…………………………

v. An effort of 50N used to operate a machine to lift up a load of 150N the mechanical advantage ( M.A) of the machine is …………………… 

SECTION B (40 Marks)

4. a) state laws of reflection

b) Explain the behavior of light when it encounters translucent, transparent and opaque materials

c) Calculate number of images when the angle between two plane mirrors is: i. 60⁰ ii. 0⁰

d) How the number of images formed by plane mirrors related to the angle between two plane mirrors?

5. a) State conditions for a body to be in equilibrium.

(b)By using the principle of Moment determine unknown Weight (W) on the fig below.

(c)A machine having velocity ratio (V.R) of 5 need an effort of 240N to raise a load of 720N. How much 

i. mechanical advantage

ii. Efficiency (e)

6. a)i. Differentiate Distance from displacement.

ii. Write down three equations of linear motion

b) A paratrooper falling under gravity after 6 seconds, 

i. what will be the maximum height covered?

ii. What will be its velocity when hitting the ground?

7. a) Kinetic energy potential energy are forms of mechanical energy. Give comparison and differences between them

b) A car of mass 4tones travels at velocity of 4m/s .How much kinetic energy developed?

c) How much power developed when a crane lifts a container of mass 500kg through a height of 5m in 10sec ?

SECTION C (30 Marks)

8. a) By using a concept of pressure explain why a tractor is designed with wide tires?

b) A rectangular block weighting 320N has dimensions of 4m x 2mx 10m. What is the greater pressure and least pressure it can be exerted on the ground?

(c). Explain why the wall of the dam is made much thicker at the bottom than at the top?

d) What is usefulness of atmospheric pressure in real life situation? (Any three)

9. a) state Newton’s laws of motion

b) i. Give reason why a person doing high jump bend a little his legs on landing ii. Why it’s necessary to use seat belt in a car?

c) A tennis ball whose mass is 150 g is moving at a speed of 20 m/s. it is then brought to rest by one player in 0.05 s. find average force applied

10.a) Explain why efficiency of machines is always less than 100%?

b) An object weight in air is 6.0N and 4.0N when immersed in water. What will be its:

i. Up thrust in water

ii. Relative density

iii.Density

c) Give reason why a ship can move on surface of water without sinking?