Thermal Energy transfer and equilibrium

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What is thermal energy?

Back

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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What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

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What are the three methods of heat transfer?

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The three methods of heat transfer are conduction, convection, and radiation.

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What is conduction?

Back

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 and density.

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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 sunlight.

Front

What happens to thermal energy when two objects at different temperatures come into contact?

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Thermal energy will transfer from the hotter object to the cooler object until they reach thermal equilibrium.

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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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How does the temperature of an object affect its thermal energy?

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The higher the temperature of an object, the greater its thermal energy, as thermal energy is related to the motion of its particles.

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What is an example of convection in everyday life?

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An example of convection is the way warm air rises and cool air sinks, creating a circulation pattern in a room.