Thermal Energy

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What is thermal energy?

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Thermal energy is the total energy of all the particles in an object, which includes both kinetic energy (due to motion) and potential energy (due to position).

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How does mass affect thermal energy?

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Objects with more mass have more thermal energy because they contain more molecules, which means more energy in the bonds between them.

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What happens to thermal energy when an object is heated?

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When an object is heated, its thermal energy increases, causing the molecules to move faster and increasing the object's temperature.

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What is the relationship between temperature and thermal energy?

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Temperature is a measure of the average kinetic energy of the particles in a substance; higher temperature means higher thermal energy.

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What is the change of state from solid to liquid called?

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Melting.

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What is the change of state from liquid to solid called?

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Freezing.

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What is the change of state from liquid to gas called?

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Boiling or evaporation.

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What is the change of state from gas to liquid called?

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Condensation.

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Do hot objects have more or less thermal energy than cold objects?

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Hot objects have more thermal energy than cold objects.

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What is kinetic energy?

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Kinetic energy is the energy of motion; in thermal energy, it refers to the movement of molecules.

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