Conduction Convection Radiation

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What is Conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

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What is Convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks.

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What is Radiation?

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Radiation is the transfer of energy through electromagnetic waves. It does not require a medium and can occur in a vacuum.

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Example of Conduction in everyday life?

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Touching a hot stove and feeling the heat transfer to your hand.

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Example of Convection in everyday life?

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Boiling water where hot water rises to the top and cooler water sinks to the bottom.

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Example of Radiation in everyday life?

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Feeling the warmth of the sun on your skin.

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What is the role of Convection in weather patterns?

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Convection helps distribute heat in the atmosphere, leading to wind and weather changes.

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How does Conduction occur in metals?

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Metals conduct heat well because their atoms are closely packed, allowing energy to transfer quickly.

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What is a real-world application of Radiation?

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Solar panels convert sunlight (radiation) into electricity.

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What happens to air during Convection?

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Warm air expands, becomes less dense, and rises, while cooler air sinks, creating a convection current.