Unit 4 Week 4: Thermal Energy and Matter

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What is thermal energy?

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Thermal energy is the total kinetic energy of the particles in a substance, which is related to its temperature.

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How does heat flow between objects?

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Heat flows from an object with a higher temperature to an object with a lower temperature until thermal equilibrium is reached.

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What is temperature a measure of?

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Temperature measures the average kinetic energy of the particles that make up an object.

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What happens to the temperature of an object when heat is added?

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When heat is added to an object, its temperature typically increases.

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What happens to the temperature of an object when heat is removed?

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When heat is removed from an object, its temperature typically decreases.

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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 or gases) caused by differences in temperature.

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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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What is thermal equilibrium?

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Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

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What is the effect of adding heat to a solid?

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Adding heat to a solid can cause it to melt into a liquid if the temperature reaches the melting point.

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NGSS.MS-PS1-4