Heat page 11

Heat is a measure of the average kinetic energy of

the molecules of a substance.

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Heat flows from cooler objects to warmer objects.

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When a solid melts, it gains thermal energy.

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Convection occurs when two solid objects touch and

heat is transferred between them.

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Radiation can occur in empty space.

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Matter generally contracts when it is heated.

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Metals are poor conductors of heat.

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A substance with a high specific heat constant

requires more energy to increase its temperature.

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When a hammer hits a nail, gravitational potential

energy and kinetic energy are converted to internal

energy.

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If two objects are in thermal equilibrium when they

are in contact, they have the same temperature.

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