Heat 2 – Science Revision

1. 1 pts.	Heat travels well by radiation through
	A.	wood
	B.	steel
	C.	a vacuum
	D.	aluminium
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2. 1 pts.	Heat is given out best by a surface which is
	A.	red
	B.	black
	C.	white
	D.	yellow
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3. 1 pts.	Heat is absorbed best by a surface which is
	A.	red
	B.	black
	C.	white
	D.	yellow
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4. 1 pts.	Heat travels well by radiation through
	A.	air
	B.	wood
	C.	iron
	D.	copper
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5. 1 pts.	How does heat come from the sun?
	A.	conduction
	B.	convection
	C.	radiation
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6. 1 pts.	When holding a snowball in your hand how does the heat flow from your hand?
	A.	conduction
	B.	convection
	C.	radiation
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7. 1 pts.	How does heat get to the bread when making toast?
	A.	conduction
	B.	convection
	C.	radiation
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8.
1 pts.

Some coins were left out in the sunshine. Which of the coins would get hot the quickest?

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9.
1 pts.

In the diagram below of an electric fire, which arrow shows a heat ray?

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10. 1 pts.	Heat moves by convection currents in
	A.	air
	B.	iron
	C.	rubber
	D.	plastic
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11. 1 pts.	How does heat flow from the electric iron to your clothes when you are ironging?
	A.	conduction
	B.	convection
	C.	radiation
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12. 1 pts.	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
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13. 1 pts.	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
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14. 1 pts.	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
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15. 1 pts.	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
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