Book 3 Chapter 2---Properties of Heat

What happens when an object is heated?

• Heat is transferred equally to all parts.

• Heat is transferred from the hotter part to the colder part.

• Heat is transferred from the colder part to the hotter part.

• Heat is not transferred at all.

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Which materials transfer heat quickly?

• Non-metals

• Wood

• Plastics

• Metals

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Why should we hold hot objects carefully using poor conductors of heat?

• To make them cool faster

• To avoid burns

• To transfer heat faster

• To make them hotter

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What happens to materials when they are heated?

• They expand

• They become lighter

• They stay the same size

• They shrink

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What happens to the liquid in a thermometer when it is heated?

• It disappears

• It contracts

• It changes color

• It expands

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Which materials are good conductors of heat?

• Plastics

• Metals

• Glass

• Wood

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Which materials are poor conductors of heat?

• gold

• Metals

• copper

• Non-metals

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What do most non-metals do in terms of heat transfer?

• Absorb heat

• Do not transfer heat at all

• Transfer heat slowly

• Transfer heat quickly

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What do metals do in terms of heat transfer?

• Do not transfer heat at all

• Absorb heat

• Transfer heat quickly

• Transfer heat slowly

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What should we use to make products that need slow heat transfer?

• copper

• Metals

• Non-metals

• Glass

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