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Biblioteka

Savvas 7th Grade Thermal Energy and Heat Test Modified Part B

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Posljednje ažuriranje almost 3 years ago
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Pitanje 7
7.
2
Pitanje 1
1.

The amount of energy required to raise the temperature of 1 kilogram of a substance by 1 kelvin is called its

Pitanje 2
2.

A material that conducts heat poorly is called a(n)

Pitanje 3
3.

Which of these is a good conductor?

Pitanje 4
4.

Trapped air is a good conductor because it reduces heat transfer

Pitanje 5
5.

As most substances are cooled, they expand.

Pitanje 6
6.

Specific heat is measured in joules.

Pitanje 8
8.

The specific heat of foam is 1200J(kg-K). How much heat does it take to raise the temperature of 1 kg of foam by 2 K?

Hint: Remember the Energy Change Formula Energy Change=Mass x Specific Heat x Temperature Change