x. The symbol of a cell is given by A. B. C. D.

Fill the correct answer in the blank spaces provided. i. Gases have no definite ______________ because__________________. ii. A bulb of light changes ______________ energy to light energy and _______________________ energy. iii. The product of _________________ and velocity is called _________________. iv. Resistance of a conductor depends on ________________, temperature and _____________________. v. When a magnet is freely suspended the ______________ pole tends south and the North Pole tends ___________________. vi. Energy can neither be ___________________ nor __________________. vii. When a body is immersed in a fluid the ______________ of the body is equal to the weight of the fluid ________________________. viii. Sea wave’s energy is a result of ______________________ of the sea. ix. Capacitor is a device used to _________________ electric _________________. x. Water reaches its highest ____________________ at a temperature of _________________________ Degrees Celsius.

1. Gases have no definite ______________ because__________________. (1 mk)
2. A bulb of light changes ______________ energy to light energy and _______________________ energy. (1 mk)
3. The product of _________________ and velocity is called _________________. (1 mk)
4. Resistance of a conductor depends on ________________, temperature and _____________________. (1 mk)
5. When a magnet is freely suspended the ______________ pole tends south and the North Pole tends ___________________. (1 mk)
6. Energy can neither be ___________________ nor __________________. (1 mk)
7. When a body is immersed in a fluid the ______________ of the body is equal to the weight of the fluid ________________________. (1 mk)
8. Sea wave’s energy is a result of ______________________ of the sea. (1 mk)
9. Capacitor is a device used to _________________ electric _________________. (1 mk)
10. Water reaches its highest ____________________ at a temperature of _________________________ Degrees Celsius. (1 mk)

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A cylinder tank has a radius of 7 cm and a height of 12 cm. Calculate its volume.

1. A cylinder tank has a radius of 7 cm and a height of 12 cm. Calculate its volume. (2 mk)
2. Ebonite rod rubbed with fur (0 mk)
3. (0 mk)
4. Glass rod rubbed with silk. (0 mk)
5. (0 mk)
6. (0 mk)

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A 4 kg object is moving to the right at 2m/s, then it collides with a stationary object of 6kg. After the collision, the velocity of the 6kg object is 1.6m/s to the right. i. What is the velocity of the 4kg object after the collision? ii. What is the total kinetic energy before and after collision?

1. What is the velocity of the 4kg object after the collision? (0 mk)
2. What is the total kinetic energy before and after collision? (0 mk)
3. Efficiency (1 mk)
4. Repulsion (1 mk)
5. Moment (1 mk)
6. Alcohol (1 mk)
7. Galvanometer (1 mk)
8. Watt (1 mk)
9. Chemical energy (1 mk)
10. Second Newton’s law of motion (1 mk)

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Distinguish between the following terms. a. i. Adhesion and Cohesion ii. Elastic material and plastic material. b. Write down three (3) factors affecting surface tension of a liquid. i. ______________________________________________________________ ii. ______________________________________________________________ iii. ______________________________________________________________

1. Adhesion and Cohesion (6 mk)
2. Adhesion and Cohesion (4 mk)
3. Elastic material and plastic material. (4 mk)
4. Write down three (3) factors affecting surface tension of a liquid. (2 mk)

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Calculate the surface area of an object which exerts a pressure of 20N/m2 when a force acting on it is 2N.

1. What is periscope? (0 mk)
2. What is periscope? (0 mk)
3. In which area is the periscope used? (0 mk)
4. In which area is the periscope used? (0 mk)
5. Draw a periscope (0 mk)
6. Draw a periscope (0 mk)

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A meter rule is pivoted about a point O as shown in figure below and it is balanced by a load of 0.2N. Calculate the mass of the meter rule.

1. State the Principle of moments. (0 mk)
2. A meter rule is pivoted about a point O as shown in figure below and it is balanced by a load of 0.2N. Calculate the mass of the meter rule. (5 mk)
3. Distinguish between stable and unstable equilibrium. (0 mk)
4. Distinguish between stable and unstable equilibrium. (0 mk)

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A cylinder tank has a radius of 7 cm and a height of 12 cm. Calculate its volume.

1. A cylinder tank has a radius of 7 cm and a height of 12 cm. Calculate its volume. (0 mk)
2. Name three (3) apparatus that are used to measure the volume of a liquid. (0 mk)

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A 4 kg object is moving to the right at 2m/s, then it collides with a stationary object of 6kg. After the collision, the velocity of the 6kg object is 1.6m/s to the right. i. What is the velocity of the 4kg object after the collision? ii. What is the total kinetic energy before and after collision?

1. Differentiate between elastic and inelastic collisions. (4 mk)
2. What is the total kinetic energy before and after collision? (4 mk)

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Explain briefly what happens when i. Ebonite rod rubbed with fur ii. Glass rod rubbed with silk.

1. Define Electrostatics. (2 mk)
2. Ebonite rod rubbed with fur (0 mk)
3. Define Conductors. (2 mk)
4. Glass rod rubbed with silk. (0 mk)
5. Name four (4) devices which use capacitors. (2 mk)

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An experiment was conducted at a certain Secondary School to study the relationship between force applied and the extension of a spiral spring. The results were as follows: Note: Initial reading (lo) = 53.4cm Weight, W (g) | Force (N) | Length, l (cm) | Extension, e = (l – lo) cm -----------------|-----------|----------------|------------------------ 50 | 0.5 | 55.4 | 100 | 1.0 | 58.0 | 150 | 1.5 | 60.4 | 200 | 2.0 | 62.8 | 250 | 2.5 | 65.2 | 300 | 3.0 | 67.5 | i. Complete the table above. ii. Plot the graph of the force against extension (on the graph paper). iii. From the graph find the slope.

1. Complete the table above. (0 mk)
2. Complete the table above. (5 mk)
3. Plot the graph of the force against extension (on the graph paper). (10 mk)
4. Plot the graph of the force against extension (on the graph paper). (0 mk)
5. From the graph find the slope. (0 mk)
6. From the graph find the slope. (5 mk)

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