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KCPE revision questions and answers on heat transfer

KCPE revision questions and answers on heat transfer. The questions are high quality and exam standard.

Lessons (21)

1. Some standard VI pupils poured equal volumes of boiling water at the same time into three cups as represented by the diagram below: They then left the cups on the desk for 10 minutes and measured the temperature of the water in each cup. If the cups were all of the same size, colour, thickness and shape, which one of the following statements is MOST likely to be correct? The temperature of the
2m 40s
2. A pupil heated water in a container as shown in the diagram below. Select from the following the main method by which heat travels from point P to point Q. A. Conduction. B. Convection. C. Radiation. D. Expansion.
3m 42s
3. The diagram below shows water in a container being heated. Heat is transferred from point X and Y by A. Conduction and convection. B. Conduction and radiation. C. Convection and radiation. D. Convection and conduction.
3m 56s
4. Ali obtained two identical containers. He painted one black and the other white. He then put equal amounts of water in the two containers and left them in the sunshine for the same length of time. Which of the following statements about the water is TRUE? The temperature of the water in the A. Two containers would be equal. B. White container would be higher than that in the black container.
3m 4s
5. The diagram below represents a set up that can be used to demonstrate a certain process. The process demonstrated is A. convection B. conduction C. diffusion D. radiation.
3m 51s
6. The diagram below represents a person warming himself by the fire. Which one of the following shows how heat reaches the hands and the feet?
4m 15s
7. A plastic bottle was placed in a carton and insulating material put around the bottle as shown in the diagram below. The bottle was then filled with hot water. Which one of the following would help keep the water hot for a longer time? A. Putting a lining of aluminium foil around the carton. B. Using insulating material with large air spaces. C.Using black insulating material. D.Using a metal box
2m 49s
8. The diagram below represents a set up used by pupils to compare the rate at which heat is conducted in metals. Pupils would make wrong conclusions if they used A. metals of different thickness B. different types of pins C. metals of different lengths D. different types of metals.
2m 11s
9. The diagram below represents a setup that can be used to demonstrate heat transfer in air. For the demonstration to work a burning candle must be placed at A.P B.Q C.R D.S
2m 57s
10. Heat reaches the feet of a person seated by the side of a fire by A. conduction and convection B. radiation only C. convection only D. radiation and convection.
3m 37s
11. In a certain investigation pupils heated different materials and recorded their findings. Which one of the following CORRECTLY shows the pupils’ findings?
3m 32s
12. The following are activities carried out to investigate the effect of heat on a liquid. (i) Placing the bottle on a source of heat. (ii) Filling the bottle with coloured water. (iii) Fixing a straw on the cork (iv) Closing the bottle tightly with the cork Which one of the following is the CORRECT ORDER of the activities? A.(ii), (iii), (iv) (i). B.(iii), (iv), (ii), (i). C.(ii), (i), (iii), (iv)
2m 29s
13. Heat is transferred through a vacuum by A. convection and conduction B. Convection only C. Conduction and radiation D. Radiation only.
1m 55s
14. The diagram below represents a set-up that is used to demonstrate a certain aspect of matter. The aspect investigated is A. radiation B. convection C. conduction D. expansion
2m 57s
15. Heat transfer in liquids and gases mainly takes place through A. radiation B. convection and conduction C. convection D. conduction and radiation
1m 16s
16. The diagram below shows a set up used by pupils to demonstrate a certain property of matter. The mistake made in the set up was to A. use balls of wax of the same size B. place balls of wax at equal intervals C. use a plank of wood D. place the candle at the end of the plank of wood
2m 20s
17. The heat from a burning charcoal stove reaches the other parts of a room mainly by A. radiation and conduction B. radiation only C. radiation and convection D. convection only.
3m 14s
18. The diagram below represents a set-up used to demonstrate certain aspects of matter. The pin next to the candle fell off as a result of A. conduction and radiation. B. radiation only. C. convection and conduction. D. conduction only.
2m 47s
19. The purpose of each of the following is insulation against heat loss EXCEPT A. clay pots. B. wooden handle frying pan. C. woolen clothing. D. window curtains.
1m 55s
20. Which one of the following pairs of material are correctly matched with the heat transfer processes that take place in them?
1m 22s
21. The diagram below represents a set-up that can be used to demonstrate a certain aspect of heat energy. The aspect that can be demonstrated is A. radiation and convection B. expansion and conduction C. convection and conduction D. expansion and radiation.
3m 30s

KCPE revision questions and answers on heat transfer

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