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 direction does heat typically move?

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Heat moves from warmer areas to cooler areas.

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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 conduction?

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Conduction is the transfer of heat through direct contact between materials, primarily occurring in solids.

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What is radiation?

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

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Why does warm air rise?

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Warm air is less dense than cold air, causing it to rise and create convection currents.

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What happens to the temperature of air near the ceiling of a room?

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The air near the ceiling is warmer because heat rises.

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In which state of matter does conduction primarily occur?

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Conduction primarily occurs in solids.

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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 from a heater and circulates around a room.

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How does a heat lamp keep baby chickens warm?

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A heat lamp keeps baby chickens warm through radiation, emitting heat that warms the chicks.

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