1. 1 pt(s). |
Heat travels well by radiation through | |
A. | wood | |
B. | steel | |
C. | a vacuum | |
D. | aluminium |
2. 1 pt(s). |
Heat is given out best by a surface which is | |
A. | red | |
B. | black | |
C. | white | |
D. | yellow |
3. 1 pt(s). |
Heat is absorbed best by a surface which is | |
A. | red | |
B. | black | |
C. | white | |
D. | yellow |
4. 1 pt(s). |
Heat travels well by radiation through | |
A. | air | |
B. | wood | |
C. | iron | |
D. | copper |
5. 1 pt(s). |
How does heat come from the sun? | |
A. | conduction | |
B. | convection | |
C. | radiation |
6. 1 pt(s). |
When holding a snowball in your hand how does the heat flow from your hand? | |
A. | conduction | |
B. | convection | |
C. | radiation |
7. 1 pt(s). |
How does heat get to the bread when making toast? | |
A. | conduction | |
B. | convection | |
C. | radiation |
8. 1 pt(s). |
Some coins were left out in the sunshine. Which of the coins would get hot the quickest? | ||
A. |
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B. |
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C. |
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D. |
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9. 1 pt(s). |
In the diagram below of an electric fire, which arrow shows a heat ray?
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A. | A | ||
B. | B | ||
C. | C | ||
D. | D |
10. 1 pt(s). |
Heat moves by convection currents in | |
A. | air | |
B. | iron | |
C. | rubber | |
D. | plastic |
11. 1 pt(s). |
How does heat flow from the electric iron to your clothes when you are ironging? | |
A. | conduction | |
B. | convection | |
C. | radiation |
12. 1 pt(s). |
Saucepan handles are made of wood because | |
A. | wood is an attractive material | |
B. | wood is a poor conductor of heat, so doesn’t get hot | |
C. | wood is a good conductor of heat, so doesn’t get hot | |
D. | wood is cheap |
13. 1 pt(s). |
Tar melts on the road on a very hot day because roads | |
A. | are melted by the earth | |
B. | radiate heat to the sun | |
C. | absorb heat from the sun | |
D. | conduct heat into the earth |
14. 1 pt(s). |
Two identical cars, one white and one black were parked in the sun. After a few hours the metalwork of the dark one was hot to the touch, but the white one was not. This is because | |
A. | dark paint retains the heat | |
B. | white paint keeps the cold in | |
C. | dark paint absorbs heat better than white | |
D. | dark paint reflects heat better than white |
15. 1 pt(s). |
Here are some statements about heat transfer. Which is correct | |
A. | Radiation only occurs in a vacuum | |
B. | Radiation only occurs in a gas | |
C. | Convection occurs in a vacuum | |
D. | Convection only occurs in a liquid or a gas | |
E. | Convection only occurs in a solid |