Conduction Convection Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving ones, transferring energy.

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What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warmer, less dense fluid rises while cooler, denser fluid sinks, creating a circulation pattern.

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What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through empty space.

Front

Example of conduction in everyday life?

Back

Walking on warm sand with bare feet is an example of conduction, as heat is transferred from the sand to your feet.

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Example of convection in everyday life?

Back

The warm air rising near the ceiling of a room is an example of convection, as the heat is transferred through the movement of air.

Front

Example of radiation in everyday life?

Back

Feeling warmth from the sun or a lamp is an example of radiation, as heat is transferred through electromagnetic waves.

Front

How does a metal spoon get warm in soup?

Back

The handle of a metal spoon warms up in hot soup due to conduction, as heat is transferred from the soup to the spoon through direct contact.

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What happens to air when it is heated?

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When air is heated, it becomes less dense and rises, creating convection currents as cooler air moves in to take its place.

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What is the role of insulation in heat transfer?

Back

Insulation reduces heat transfer by conduction, convection, and radiation, helping to keep heat in or out of a space.

Front

How does convection affect weather patterns?

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Convection currents in the atmosphere help distribute heat, influencing weather patterns and creating phenomena like wind and storms.