Heat transfer-Conduction Convection Radiation

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What is conduction?

Back

Conduction is the transfer of heat through a solid material without the movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

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What is convection?

Back

Convection is the transfer of heat through fluids (liquids and gases) caused by the movement of the fluid itself. Warmer parts of the fluid rise while cooler parts sink.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light. It does not require a medium to travel through.

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How does heat transfer occur in cooking pasta?

Back

When cooking pasta, heat is transferred from the hot water to the pasta primarily through convection.

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What type of heat transfer occurs when you feel warmth from a campfire?

Back

The warmth you feel from a campfire is due to radiation.

Front

What happens when you touch a hot stove?

Back

When you touch a hot stove, heat is transferred to your hand through conduction.

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What is an example of convection in everyday life?

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An example of convection is when warm air rises and cool air sinks in a room, creating a circulation of air.

Front

What is an example of conduction?

Back

An example of conduction is when a metal spoon gets hot after being placed in a pot of hot soup.

Front

What is an example of radiation?

Back

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

Front

How does a microwave heat food?

Back

A microwave heats food through radiation, using microwaves to excite water molecules in the food.