Heat Transfer

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What is heat transfer?

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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 main types of heat transfer?

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Conduction, Convection, and Radiation.

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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 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.

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What is an example of conduction?

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An example of conduction is a metal spoon getting hot when placed in a pot of hot soup.

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What is an example of convection?

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An example of convection is warm air rising and cool air sinking, creating a circular motion.

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What is an example of radiation?

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An example of radiation is feeling the warmth of the sun on your skin.

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What are convection currents?

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Convection currents are the circular patterns of movement in a fluid caused by the rising of warm fluid and the sinking of cooler fluid.

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How does a hot air balloon work?

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A hot air balloon rises because the air inside the balloon is heated, making it less dense than the cooler air outside.

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