BECE Past Questions & Answers – 2002 (SCIENCE)

SCIENCE

SECTION A OBJECTIVE TEST
45 minutes

1. Which of the following substances is made up of only one kind of atom?
A. Iron B. Salt C. Steel
D. Water

2. Ice is able to float on water because the ice is
A. colder than water
B. denser than water
C. has a greater mass for the same volume of water
D. has a greater volume for the same mass of water

3. Which of the following statements about the state of matter is correct?
A. Molecules in a solid are disorderly arranged
B. Solids are highly compressible
C. Liquids have definite form and volume
D. Molecules in a gas move faster than those in a liquid.

4. The above diagram illustrates the structure of an atom. The components labeled X and Y are respectively
A. neutrons and shells
B. ions and neutrons
C. neutrons and nucleus

D. nucleus and neutrons

5. The force which opposes the motion of one object on another object is known as
A. friction B. gravity C. tension D. weight

6. When the brakes of a bicycle in motion are applied for a long time the wheels become hot. This is because of a change of energy from
A. kinetic energy to potential energy B. potential energy to kinetic energy C. potential energy to heat energy
D. kinetic energy to heat energy

7. A man applied a forceof50 N to push a wheel barrow through adistanceof6 m. Calculate the work done.
A. 300 J B. 56 J C. 44 J D. 30 J

8. In which of the following situations is work said to be done?
A. Walking with a load on the head in an upright position. B. Getting up from a chair
C. Pushing against a wall which does not move. D. Sitting still behind a desk.

9. The energy stored in food is
A. an electrostatic energy
B. a chemical energy
C. a solar energy
D. a thermal energy

10. A machine which has an energy loss of 10% will have an efficiency of
A. 100%
B. 90%
C. 55%
D. 10%

The figure below shows a simple electric circuit.Use it to answer questions 11 to 13

11. The switch is represented by
A. IV B. III C. II D. I

12. The component labeled V is a/an
A. ammeter B. battery C. lamp
D. voltmeter

13. The purpose of the component labeled IV is to
A. supply energy to the circuit
B. measure the voltage of the battery
C. prevent too much current from flowing
D. close the circuit

14. Which of the following diseases is spread by a mosquito?
A. Blindness
B. Cholera
C. Dysentery
D. Elephantiasis

15. The inter mediate host of the worm that causes Bilharzia is
A. man
B. mosquito C. tsetse fly D. waters nail

The figure below is a diagram of a fish. Use it answer questions 16 and 17

16. The function of the part labeled IV is to enable the fish to
A. sink in water
B. absorb oxygen from the water
C. protect itself from attack
D. detect smell in water

17. The part labeled V is used for
A. balancing B. steering C. surfacing D. paddling

18. Which of the following arrangements is a probable food chain?
A. Grass →Grasshopper →Toad →Snake→Crow
B. Grasshopper→Grass→Goat →Lion →Man
C. Crow→Snake→Toad→Grass hopper→Grass
D. Grass →Goat →Lion→Man→Snake
19. One disease which can be transmitted through eating half cooked meat is
A. guineaworm B. hook worm C. thread worm D. tapeworm

20. Which of the following characteristics are common to all living things?
I. Response to stimuli
II. Respiration
III. Movement from place to place
IV. Growth

A. I and II only

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

21. The part of sugar canethat is usually used for planting is the
A. corm B. leaf C. stem
D. sucker

22. Excess carbohydrate in the human body is stored as
A. amino acid B. fatty acid C. glycogen D. glucose

23. Carbon dioxide in the blood is removed from the body through the
A. kidneys
B. lungs C. mouth D. skin

24. The end-product of protein digestion is
A. amino acid
B. glycerol C. glycogen D. peptide

25. The liquid component of the blood is known as
A. cytoplasm
B. haemoglobin
C. plasma
D. platelets

26. Digested food substances are absorbed into the blood stream in the
A. kidneys
B. liver
C. stomach
D. iluem

27. The part of the human ear which collect and direct sound waves is the
A. ear drum B. ear lobe C. ear canal
D. semi-circular canal

28. The process b ywhich waste substances are removed from the body is called
A. egestion
B. excretion
C. perspiration
D. respiration

29. The embryo of a mammal develops from
A. eggs fertilized inside the body B. eggs fertilized outside th ebody C. self fertilized eggs
D. only female sexc ells

30. Which of the following gases is given out during photosynthesis?
A. Carbon dioxide
B. Carbon monoxide
C. Nitrogen
D. Oxygen

31. The component of the soil which is made up of the finest particles is
A. clay
B. humus C. loam D. sand

32. The soil type which is able to retain the highest amount of water is
A. clay B. loam C. gravel D. sand

33. The formation of humus is aided by
A. earthworms
B. insects
C. rats
D. wind

34. The major cause of pollution at a stone quarry is
A. dust
B. human waste C. acid disposal D. smoke

35. Ringworm is a skin disease, which is caused by
A. bacteria

B. fungi C. insects D. worms

36. Which of the following habits will help in the control of diseases contracted through air?
I. Not throwing humanwaste into rivers
II. Washing of hands after visiting the toilet
III. Not spitting about in public places
IV. Keeping foods always covered

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

37. Soup which is not well-heated gets spoilt when kept for sometime because the
A. salt in the soup is too small
B. water in the soup do not all evaporate
C. heat in the soup is not enough to kill all bacteria
D. water condenses back into the soup.

38. The measure of the amount of water vapour in the air is known as
A. cloud
B. dew
C. humidity
D. temperature

39. Which of the following heavenly bodies is a star?
A. Earth B. Moon C. Sun
D. Milky Way

40. The planet in our solar system which has the largest orbit is
A. Jupiter B. Mars C. Pluto D. Venus

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