Heat transfer

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What is heat transfer?

Back

The process of thermal energy moving from one object or substance to another due to a temperature difference.

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What is convection?

Back

The transfer of heat through the movement of fluids (liquids and gases) caused by differences in temperature and density.

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What is radiation?

Back

The transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

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What is conduction?

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The transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

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What is thermal energy?

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

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What is kinetic energy?

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The energy of motion, which in the context of heat transfer, refers to the movement of particles in a substance.

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What is temperature?

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A measure of the average kinetic energy of the particles in a substance.

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How does boiling water demonstrate convection?

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In boiling water, hot water rises to the surface while cooler water sinks, creating a circular motion that transfers heat throughout the liquid.

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How does microwaving food demonstrate radiation?

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Microwaves use electromagnetic radiation to heat food by causing water molecules in the food to vibrate, generating heat.

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What is an example of conduction?

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A metal spoon getting hot when placed in a pot of hot soup.