Thermal Energy

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What is thermal energy?

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Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

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How does heat transfer occur?

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Heat transfer occurs only from warm objects to colder ones.

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What form of energy causes water to boil?

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Thermal energy causes water to boil.

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When you touch a cold object, which way does heat move?

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Heat moves from your hand to the cold object.

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What is conduction?

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Conduction is the transfer of heat through direct contact between materials.

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids and gases).

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves, such as light.

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Why does metal feel colder than wood at the same temperature?

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Metal conducts heat away from your skin faster than wood, making it feel colder.

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What happens to the thermal energy of an object when it is heated?

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The thermal energy of an object increases when it is heated, causing its particles to move faster.

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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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