BECE Past Questions & Answers – 2004 (SCIENCE)

April 2004

SCIENCE

SECTION A OBJECTIVE TEST
45 minutes

1. Which of the following processes of conversion of the states of matter is correct?
A. Solid (heat) → gas (heat) → liquid
B. Solid (cool) → liquid (cool) → gas
C. Gas (heat) → liquid (heat) → solid
D. Gas (cool) → liquid (cool) → solid

2. The types of energy produced when the hands are vigorously rubbed against each other are
A. chemical and electrical energy
B. heat and sound energy
C. heat and light energy
D. electrical and light energy

3. When a thermometer is put in hot water,the mercury level rises because the mercury increases in
A.density B.mass C.volume D.weight

4. The modes of heat transfer involved in the process of heating water in a bucket from the bottom until it boils are
A. conduction and convection
B. conduction and radiation
C. convection and radiation
D. conduction, convection and radiation

5. Which of the following items converts chemical energy to electrical energy?
A. Dry cell B. Electric bulb C. Loudspeaker D. Microphone

Use the diagrams below to answer Questions6 and7

a1

6. Which of the following statements is correct about the circuit diagrams above?The cells in diagram
A. X are in series and the key is open B. X are in parallel and the key is open C. Y are in series and the key is closed D. Y are in parallel and the key is closed

7. The total emf of the cells in diagram Y is
A. 4.50 V B. 3.00 V C. 1.50 V D. 0.75 V

8. It is easier to move a heavy load with a crow bar when the A. effort distance is shorter than the load distance B. effort distance is longer than the load distance
C. effort distance is equal to the load distance
D. effort is equalto the load

9.

a2

The type of lever shown above is a
A. first class lever
B. second class lever
C. third class lever
D. combination of first and second class levers

10. A balanced diet is one which is made up of
A. right proportions of protein, carbohydrates and oil
B. equal amounts of protein, carbohydrates and oil
C. enough water and iodated salt
D. vegetables,fruits and water

11. Benedict’s solution was added to a mixture in a test tube and it turned brick red when heated.The mixture is likely
to contain
A. glucose B. oil C. protein D. vitamin

12. The main food substance present in the albumen of an egg is
A. carbohydrates B. fat C. protein D. vitamin

13. One characteristic which is not common to all living things is the ability to
A. grow B. move about C. respire D. respond to stimuli

14. The ovules in a flower develop to form the
A. fruit B. leaves C. seeds D. stem

15. Onions are planted by means of
A. bulbs B. corms C. suckers D. rhizomes

16. The test is in mammals produces
A. blood B. lymph C. sperms D. urine

17. Which of the following structures takes part inhuman digestion?
A. Caecum B. Kidney C. Larynx D. Pancreas

18. Which of the following diseases is contracted through sex?
A. HIV/AIDS B. Asthma C. Tuberculosis D. Goitre

19. Chlorine gas is an example of
A. an atom B. an element C. a compound D. a molecule

20. The bad smell that comes out of a urinal is due to the presence of
A. ammonia B. hydrogen C. carbon dioxide D. nitrogen

21. The systematic name of the compound FeS is
A. iron(I)sulphide B. iron(II)sulphide C. iron(III)sulphide D. iron(IV)sulphide

22. Which of the following elements is a liquid at room temperature?
A. Carbon B. Mercury C. Silver D. Sulphur

23. The type of cloud that gives rain is
A. cumulus B. cirrus C. nimbus D. stratus

24. Water drains faster through sand than clay because
A. sand particles are rougher
B. sand contains more air spaces

C. clay particles are smoother
D. clay particles are bigger

25. Which of the following organisms is not an animal [parasite?
A. tick B. tapeworm C. plasmodium D. weevil

26. The housefly is an a gent for the spread of
A. cholera B. malaria C. measles D. tuberculosis

27. The best method for checking erosion on a slope is
A. cover cropping
B. mixed cropping
C. contour ploughing
D. mulching

28. It is not advisable to sleep in a closed dark room with green plants because, the plants
A. produce heat
B. compete with human beings for oxygen
C. absorb water vapour
D. produce carbon dioxide

29. The process where by soil is formed by the breakdown of rocks is called
A. composting B. erosion C. leaching D. weathering

30. Kerosene is able to reach the other end of a wick by
A. diffusion
B. suction pressure C. capillary action D. osmosis

31. The force,which opposes the motion of one body on another body is called
A. adhesion B. cohesion C. friction D. tension

32. The work done when a force moves a body through a distance of12 m is 720J.The force applied is
A. 8640 N B. 732 N C. 708 N D. 60 N

33. Food substances are transported from the leaves to various parts of a plant through the
A. cambium B. epidermis C. phloem D. xylem

34. Which of the following substances are carried by the blood?
I. Nutrients
II. Urine

III. Oxygen
IV. Carbon dioxide

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

35. A uniform mixture of two or more metals is called
A. an alloy B. a colloid C. an aerosol
D. a compound

36. Gold is usually used to make jewellery because it is
A. precious
B. expensive
C. less reactive with air
D. a good conductor of heat

37. Which of the following substances is a non-metal?
A. Diamond B. Mercury C. Sodium D. Steel

38. Alum is added to water during treatment to
A. kill germs
B. help suspended particles to settle
C. make the water colourless
D. give taste to the water

39. Which of the following types of water would be most contaminated by waste substances?
A. Rain water
B. Stream water
C. Bore hole water
D. Pipe borne water

40. The method of preserving food by drying is similar to salting because in both cases germs are
A. deprived of the air needed for growth
B. deprived of the water needed for growth
C. destroyed a thigh temperatures
D. destroyed at low temperatures




CLICK TO VIEW ANSWERS TO OBJECTIVES
April2004

SCIENCE Section A

SOLUTIONS

OBJECTIVE TEST

1. D. Gas (cool) → liquid (cool) → solid
2. B. heat and sound energy

3. C. volume

4. A. conduction and convection

5. A. Dry cell

6. A. X are in series and the key is open

7. C. 1.50 V

8. B. effort distance is longer than the load distance

9. C. third class lever

10. A. right proportions of protein, carbohydrate sand oil

11. A. glucose

12. C. protein

13. B. move about

14. C. seeds

15. A. bulbs

16. C. sperms

17. D. Pancreas

18. A. HIV/AIDS

19. B. an element

20. A. ammonia

21. B. iron(II)sulphide

22.
B.
Mercury

23.
C.
nimbus

24.
B.
sand contains more air spaces

25.
D.
weevil

26.
A.
cholera

27.
C.
contour ploughing

28.
B.
compete with human beings for oxygen

29.
D.
weathering

30.
C.
capillary action

31.
C.
friction

32.
D.
60 N

33.
C.
phloem

34.
D.
I,III and IV only

35.
A.
an alloy

36.
C.
less reactive with air

37.
A.
Diamond

38.
B.
help suspended particles to settle

39.
B.
Stream water

40.
B.
deprived of the water needed for growth