Conduction, Convection, Radiation

Front

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.

Front

What is convection?

Back

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

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.

Front

Give an example of conduction.

Back

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

Front

Give an example of convection.

Back

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

Front

Give an example of radiation.

Back

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

Front

What happens to cold air?

Back

Cold air is denser than warm air, so it falls when heated air rises.

Front

How does a microwave transfer heat?

Back

A microwave primarily uses radiation to transfer heat to food.

Front

What is the main difference between conduction and convection?

Back

Conduction requires direct contact between materials, while convection involves the movement of fluids.

Front

What is an everyday example of convection?

Back

An everyday example of convection is boiling water, where hot water rises to the top and cooler water sinks.