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1. Which of the following statements about mass and weight are correct? I. Weight is the force of gravity on a body II. The mass of a body is the quantity of matter in the body III. The weight of a body is greatestat the equator IV. The mass of a body is greatest at the poles

A. I and II only
B. I and III only
C. II and IV only
D. III and IV only

2. Materials that can be stretched and still return to their original forms when the stresses are removed are said to be

A. Elastic
B. Elastomer
C. Plastic
D. Thermoplastic

3. Which of the following units is derived?

A. kg
B. m
C. K
D. N

4. The barometric reading at a place is 73.5m Hg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place.[g=$ms^{-2}$, density = 1.3 x $10^4kg$ $m^{-3}$, density of water = 1.0 x $10^3 m^{-3}$]

A. 4.0 x $10^5 Nm^{-2}$
B. 3.0 x $10^5 Nm^{-2}$
C. 2.0 x $10^5 Nm^{-2}$
D. 1.0 x $10^5 Nm^{-2}$

5. An object floats in a fluid when id displacess its

A. Volume of liquid in which it floats
B. Mass of fluid in which it floats
C. Weight of fluid in which it floats
D. Density of fluid in which it floats

6. The resultant force in a couple is

A. Zero
B. Infinite
C. The sum of the forces
D. The product of the forces

7. The slope of a straight-line velocity-time graph represents

A. Uniform acceleration
B. Uniform speed
C. Total distance travelled
D. Work done

8. A body is projected with an initial velocity U at an angle ϴ to the horizontal. The time taken by it to reach its maximum height is given by the expression

A. 2u sin ϴ / g
B. $u^2 sin^2 ϴ / 2g$
C. u sin ϴ/ g
D. u sin ϴ / 2g

9. Which of the following statements describes a body in a stable equilibrium correctly?

A. Person walking on a tight-rope
B. Ball on a smooth horizontal table
C. Ball resting on an inverted hemispherical bowl
D. Ball in the middle of a hemispherical bowl

10. In a school compound, a girl walks 40m due east from the laboratory to the staff room to submit her report. Then she returns and walks 30m due north to her classroom. Determine the magnitude of her displacement from the laboratory.

A. 10m
B. 35m
C. 50m
D. 70m

11. Two strings each inclined at an angle of $30^o$ to the horizontal are used to hold a bucket of water weighing 20N. Calculate the tension in each string.

A. 20√s N
B. 20.0N
C. 10√3 N
D. 10N

12. A bullet fired vertically upwards reaches reaches a height of 500m. Negleting air resistance, calculate the magnitude of the intial velocity of the bullet.[g=10$m^{-2}$]

A. 500.0$ms^{-1}$
B. 100.0$ms^{-1}$
C. 70.0$ms^{-1}$
D. 50.0$ms^{-1}$

13. A uniform bar AB is balanced on a knife-edge which is 60cm from B by a mass of 22g which hangs at C 10cm from A as illustrated in the diagram above. Calculate the mass of the bar

A. 133.2g
B. 66.0g
C. 60.0g
D. 22.0g

14. A body of mass 1000kg is released from a height of 10m above the ground. Determine its kinetic energy just before it strikes the ground[g=10$ms^{-2}$]

A. 10J
B. $10^2$J
C. $10^4$J
D. $10^5$J

15. See pages for figures

16. The crackling noise produced by aluminium roofing sheets on a house during a hot sunny day is as a result of

A. Thermal equilibrium of the sheets
B. Conduction of heat by the sheets
C. Contraction of the sheets
D. Expnasion of the sheets

17. Water is unsuitable for use as a thermometric liquid because it

A. Expands unevenly between $0^oC and 4^oC$.
B. Has narrow temperature range
C. Has a concave meniscus
D. Maintains a fixed density

18. See pages for figures

19. A quantity of hot water at $100^oC$ is added to 400g of water at $10^oC$ until the temperature of the mixture is $60^oC$. Calculate the mass of the hot water added.[Specific heat capacity of water=4200 $J kg^{-1}k^{-1}$]

A. 200g
B. 320g
C. 400g
D. 500g

20. See pages for figures

21. Which of the following concepts is a method of heat transfer that does not require a material medium?

A. Conduction
B. Radiation
C. Diffusion
D. Convention

22. Which of the following units is the S.I. unit of heat capacity?

A. $J kg^{-1}$
B. $J Kg^{-1} K^{-1}$
C. $J K^{-1}$
D. $Jg^{-1}K^{-1}$

23. The pressure applied to an enclosed fluid to one end is transmitted equally throughout the fluid and to the container walls. This statement is

A. Archimede’s principle
B. Bernoulli’s principle
C. Pascal’s principle
D. Heisenberg’s uncertainty principle

24. Skipped

25. What type of wave is emitted by a loud speaker?

A. Transverse
B. Longitudinal
C. Gamma
D. Radio

26. An object is placed 15cm from a diverging lens of focal length 12cm. The image of the object formed by the lens is

A. Real and 6.67 cm from the lens
B. Virtual and 6.67 cm from the lens
C. Real and 60.00cm from the lens
D. Virtual and 60.00cm from the lens

27. See pages for figures

28. A swimming pool is 2.1m deep. If it contains water of refrective index 1.3, calculate the apparent depth of the pool

A. 3.4m
B. 2.7m
C. 1.6m
D. 0.8m

29. When an air column is set into vibrations, the distance between two consecutivve nodes of the resultant wave is

A. One-quarter of the wavelength
B. One-half of the wavelength
C. The wavelength
D. Twice the wavelength

30. A girl standing some distance from the foot of a tall cliff claps her hands and hears the echo 0.8s later. Calculate her distance from the cliff[Speed of sound in air=320$ms^{-1}$]

31. Red light travels faster thanm blue light when both of them pass through a glass prism because the

A. Refractive index of red light is greater than that of blue light
B. Refractive index of blue light is greater than that of red light
C. Red light is more intense than the blue light
D. Blue light is more intense than the red light

32. An object is placed 20cm from a concave mirror of focal length 15cm. Calculate the linear magnification of the image formed

A. 0.5
B. 1.5
C. 2.0
D. 3.0

33. All electromagnetic waves in a vacuum have the same

A. Wavelength
B. Frequency
C. Speed
D. Amplitude

34. See pages for figures

35. An alternating current supply is connected to an electric lamp which lights with the same brightness as it does with direct current source emf 6v. The peak potential differences of the A.C supply is

A. 4.6V
B. 6.0V
C. 8.5V
D. 12.0V

36. An electric generator rated 12kw, 2kv distributes power through a cable of resistance 20. Calculate the power loss in the cable

A. 120W
B. 360W
C. 720W
D. 2400W

37. Which of the following statements is correct? When capacitors of different values are connected in series

A. The same charge flows through them
B. The same voltage appears across each capacitor
C. Different quantities of charges flow through them in different voltages across them
D. Different quantities of charges flow through them with the same voltage across them

38. Which of the following statement(s) about a three-pin plug is/are correct? I. The brown wire is the live wire II. The fuse is connected to the live wire III. The earth wire is cooured blue

A. I only
B. II only
C. I and II only
D. I, II and III

39. See pages for figures

40. A wire of cross-sectional area 0.60$mm^2$ has a resistivity of 7.2 x $10^{-7}$Ωm. Calculate the length of wire that will have a resistance of 3Ω

A. 0.25m
B. 2.50m
C. 3.60m
D. 36.00m

41. See pages for figures

42. The mass of the earth is 6.0 x $10^{24}$ kg and that of the moon is 7.0 x $10^{22}$kg. If the distance between them is 4.0 x $10^{-11}$m, calculate the force of attraction between them.[G=6.2 x $10^{-11} Nm^2kg^{-2}$]

A. 1.8 x $10^5$N.
B. 1.8 x $10^{10}$N
C. 1.8 x $10^{15}$N
D. 1.8 x $10^{20}$N

43. The angle which the direction of the earth magnetic field makes with the horizontal at a place is known as

A. Angle of contact
B. Angle of dip
C. Angle of declination
D. Magnetic meridian

44. See pages for figures

45. When current flows through a moving-coil galvanometer, the force exerted on the pointer depends on the I. Strength of the current II. Magnetic field strength III. Length of the coil

A. I only
B. II only
C. I and III only
D. I, II and III

46. In a nuclear fission process, the mass defect was 1.2 x $10^{-5}$kg. Calculate the energy released. [Speed of light in vacuum = c= 3.0 x $10^8 ms^{-1}$]

A. 1.08 x $10^{-11} J$
B. 5.20 x $10^{11} J$
C. 1.08 x $10^{12} J$
D. 2.50 x $10^{13} J$

47. Which of the following statements about a diode is correct?

A. Reverse bias diodes have low resistance
B. Forward bias diodes have high resistance
C. Forward bias diodes produce high current
D. Forward bias diodes function as a result of heat

48. A body weighs 50N in air displaces 3.7kg of water. Calculate the upthrust on the body

A. 37.0N
B. 97.0N
C. 13.0N
D. 8.7N

49. Which of the following radiations constitutes a stream of electrons?

A. Gamma rays
B. X-rays
C. Cathode rays
D. Radio waves

50.$^{226}_{88}Ra$ emits two alpha particles to produce polonium (Po) nuclide. The correct formula fro the nuclide

A. $^{224}_{86}Po$
B. $^{222}_{86}Po$
C. $^{222}_{84}Po$
D. $^{218}_{84}Po$