1. An engine rated 100 W raise water through a vertical height of 50 m in10 s. Find the weight of water raised
A. 5 x 10-1 N
B. 2 x 101 N
C. 2 x 102 N
D. 5 x 103 N
2. Which one of the following sets consists of brittle materials only
A. Glass and concrete.
B. Plasticine and chalk
C. Rubber and concrete.
D. Copper and wood
3. Fluid pressure can be measured using
A. Barometer.
B. Manometer.
C. Hygrometer
D. Lactometer
4. The practical emitted by a hot pieces of metal are
A. Ions
B. Protons
C. Neutrons
D. Electrons.
5. Which one of the following electro magnetic waves causes genetic disorders when absorbed in excess?
A. Radio waves
B. Infra red waves
C. Ultra-violet waves.
D. X-rays.
6. Which one of the following sources of energy is /are non –renewable?
(i) Solar energy
(ii) Fossil fuels
(iii) Tidal power
A. (i) only.
B. (ii) only
C. (ii) and (iii) only
D. (i) and (iii) only.
7. An alternative unit that could be caused for current is?
A. Joule per second
B. Joule coulomb
C. Coulomb per second
D. Volt-per meter
8. In a domestic hot water supply system, hot wear in a boiler falls to the taps by convection because
A. Hot water is less dense, and therefore rises
B. Hot water is denser than cold water, therefore it sinks
C. Cold water is prevented from mixing with hot water.
D. Warm water displaces cold water.
9. Isotopes of an element,
(i) Have same physical properties
(ii) Have equal number of protons
(iii) Have different number of neutrons
A. (i) only
B. (i) and(ii) only.
C. (ii) and (iii) only
D. (i) and (iii) only
10. A point along at the principal axes of convex lens to which rays parallel and closed to the axes converge after reflection through the lens is
A. principle focus
B. A center of curvature
C. An optical center
D. A pole
11. The energy stored in an accumulator is
A. Heat energy
B. Chemical energy
C. Electrical energy
D. Mechanical energy
12. Find the density of a rubber bung whose mass is 80 g and volume 40 cm3
A. 0.5 kg m-3
B. 2.0 kg m-3
C. 2000.0 kg m-3
D. 3200.0 kg m-3
13. A denser on stage a wearing yellow dress can be made to appear dressed in black by casting the denser with
A. Red light.
B. Blue light
C. Cyan light.
D. magenta light
14. Fig I shows a charge load P brought near conductors Q and R in contact
If P is removed after separating Q and R, and Q is negatively charged the charges on P and R are
P R
A. + -
B. - +
C. - -
D. + +
15. Which one of the following statements is/are true about x – plates in a cathode ray oscilloscope?
(i) they control brightness of the screen
(ii) they deflect the electronic beam horizontally
(iii) they are connected to time base circuit.
A. (i) and (ii) only
B. (i) and (iii) only
C. (ii) and (iii) only
D. (i), (ii),and (iii)
16. In figure 2 shows a polythene bag filled with , water punched with hole s and the squeezed from the top
The experiment demonstrates that
(i) Pressure in liquid depends on depth
(ii) A liquid finds its own level.
(iii) Pressure is transmitted equally through out the liquid.
A. (i) only.
B. (ii) only.
C. (iii) only
D. (i) ,(ii) and (iii)
17. Which of the following is is/are true about molecules of liquid? They
(i) Are constantly vibrating about their mean positions
(ii) Are further apart compared to molecules in gases
(iii) Have weaker attractive forces compared to those in solids
A. (i) only
B. (iii) only
C. (i) and (iii) only
D. (i) and(ii) only.
18. Figure 3 shows a magnetic field pattern around magnetic poles W,X Y and Z
Which one of the following is correct about the poles W, X, Y and Z?
A. X and Z repel each other and they are north poles.
B. Z and Y attract each other and will have a neutral point between them.
C. X and Y repel each other and will have a neutral point between them.
D. Y and W repel each other and they are both north poles.
19. Which one of the following devises uses flow of current through a conductor in magnetic fields to produce motion?
A. Loud Speaker
B. Alternator
C. Microphone
D. D.C generator
20. The mercy thread 13 long at 930 C. find the temperature in degrees centigrade (0C) when the thread is 5cm long.
A. 18.6
B. 28.0
C. 35.8
D. 241.8
21. Sound travels at a speed of 330 ms-2 in air 1500 ms-1 in X and can not be transmitted through Y. Which one of the following is correct about the physical properties of X and Y?
A. X is denser than air and Y contains no material medium.
B. X is less dense than air and y contains no material medium.
C. X contains no material medium and Y is denser than air.
D. X contains no material medium and Y is less dense than air.
22. A person stands 3.0 m in front of a plane mirror if the mirror is moved away from the person by 0.5 m, what is the distance between the person and the person’s image in the mirror?
A. 5.5 cm.
B. 6.0 cm
C. 6.5 cm
D. 7.0 cm
23. Figure 4 shows a velocity – time graph for a motorist.
Find the distance covered at a constant velocity.
A. 1.50 x 102m
B. 2.25 x 102m
C. 4.50 x 102m
D. 8.00 x 102m
24. Which one of the following has the lowest density?
A. Mercury.
B. Steam.
C. Water.
D. Ice
25. Figure 5 shows three bulbs connected across a circuit line from a 3V battery.
What will be observed when ends X and Y are connected to each other?
A. The bulbs will blow.
B. The wires in the circuit will burn.
C. The light intensity in the bulbs will increase.
D. The light intensity in the bulbs will reduce.
26. Superposition of two waves will produce a stationary wave if the waves have the same
(i) Velocity.
(ii) Amplitude and frequency.
(iii) Velocity in opposite directions.
A. (i) and (ii) only.
B. (i) and (iii) only.
C. (ii) and (iii) only.
D. (iii) only.
27. When a 12V lamp is connected to a car battery a current of 3A passes through its filament. Calculate the energy transferred by the lamp in 20s.
A. 720 J.
B. 240 J.
C. 60 J.
D. 36 J.
28. The force that keeps a body moving at constant speed in a circle is
A. Gravitational force.
B. Elastic force.
C. Centrifugal force.
D. Centripetal force.
29. A force of 15 N produces an extension of 2cm when applied on a spring. Find a force that produces an extension of 1.5 cm on the spring.
A. 11.25 N.
B. 20.00 N.
C. 22.50 N.
D. 30.00 N.
30. Figure 6 shows a glass prism in which light is incident at an angle of 42o
If the light is reflected at an angle of 90o in air, find the refractive index of the glass.
31. When a copper (II) sulphate crystal is placed at the bottom of a test tube containing water, a dense blue solution is formed in the water at the bottom due to;
A. Diffusion
B. Capillarity
C. Surface tension.
D. Brownian motion.
32. A boat in river flowing eastwards at 12 ms-1 is acted upon by wind blowing northwards at a velocity of 5 ms-1. Find the resultant velocity of the boat.
A. 7.0 ms-1
B. 13.0 ms-1
C. 17.0 ms-1
D. 169.0 ms-1
33. A person blows hard across the mouth of an open pipe of length 0.3 m. Find the fundamental frequency. (speed of sound = 340 ms-1)
34. The direction of the induced e.m.f in a conductor moving in a magnetic field can be changed by changing the;
(i) Speed of the conductor.
(ii) Direction of motion of the conductor.
(iii) Direction of the magnetic field.
A. (i),(ii) and (iii).
B. (ii) and (iii) only.
C. (i) and (iii) only.
D. (i) only.
35. A force of 5N changes the momentum of a body from 50 kg ms-1 to 250 kg ms-1. Find the time taken.
A. 1.7 x 10-2s
B. 2.5 x 10-2s
C. 4.0 x 101s
D. 6.0 x 101s
36. The amount of heat absorbed by a body of mass 2 kg at constant temperature is called
A. Latent heat.
B. Heat capacity.
C. Specific latent heat.
D. Specific heat capacity.
37. A radioactive material has a half – life of 3 minutes. Find how long it takes a sample of mass 900 g to decay to 56.25 g.
A. 4 min.
B. 12 min.
C. 16 min.
D. 48 min.
38. Figure 7 shows a step- down transformer used to light a bulb of resistance R=6 Ω.
Find the current through the ammeter A.
A. 2.1 A.
B. 4.0 A
C. 8.3 A.
D. 24.0 A.
39. Figure 8 shows a beam balanced horizontally by weights M1 and M2
If M2 is increased and M1 remains the same, what adjustments should be made to balance the beam horizontally?
A. M1 should be moved towards O.
B. M2 should be moved away from O.
C. Point O should be moved towards M1.
D. M1 should be moved away from O.
40. An electric kettle is rated 2 kW; calculate the cost of using it for 10 hours if each unit costs shs360.
A. Shs72
B. Shs720
C. Shs7,200
D. Shs7, 200,000.
41. (a) Define velocity.
(b) Figure 9 shows a paper tape pulled at a constant speed through a ticker timer vibrating at a frequency of 40 Hz.
Calculate the speed of the tape.
(a) What is meant by heat capacity of a substance?
(b) State two thermal quantities of a substance that can be measured in the laboratory.
(c) Calculate the amount of heat needed to raise the temperature of a metal of mass 4 kg through 10 0C if the specific heat capacity of the metal is 390 J Kg-1K-1
43.(a) When a balloon is rubbed with hair it becomes negatively charged.
Explain how the balloon becomes negatively charged.
Compare the magnitude of the charges acquired by the balloon with that left on the hair.
(b) The diagram in figure 10 shows electric field lines around a metal sphere in air.
What will happen to the charges on the sphere if a sharp spike is placed on top of the sphere?
44. The diagram in figure 11 represents a wave.
(i) Mark on the diagram the amplitude and label it, A.
(ii) How many cycles are shown on the diagram?
(iii) Calculate the period for the wave.
45.(a) Define potential energy.
A. car of mass 800 kg moves along a straight road with a speed of 72 kmhr-1 Calculate its kinetic energy
46.The diagram in figure 12 shows a warning system contain a bimetallic strip. The bimetallic strip has two metals Q and P firmly joined together.
Explain why
Lamp Y lights when the temperature of the strip increases
Lamp X lights when temperature falls.
What modification can be made to the warning system to make it work at small temperature change?
47. a) Describe the compound of 
nucleus.
A radioactive nuclide
emits an alpha particle and anew nuclide y is formed. write a balanced equation to represent this nuclear change
Give two application of nuclear energy.
48.(a) Define work and state its unit.
A block of weight 3 N moved from C to B on an incline plane as shown in figure 13.
If there is no frictional force, find the work done.
49. An experimenter standing mid –way between two high cliffs make aloud sound and hears another loud sound after 1 s.
(i) Explain the original of the second sound.
(ii) Find the distance between the cliffs if the speed of sound in air
(iii) is330 ms-2
50. (a) What is meant by neutral point as applied to a magnetic field
(b) (i) In the space below ,draw a diagram to show the magnetic field pattern due to an iron ring placed in the earth’s magnetic field.
(ii) State one application of the effect illustrated in (b) (i).