Conduction Convection Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat from one object to another through direct contact.

Front

What is convection?

Back

Convection is the transfer of heat through a fluid (liquid or gas) where warmer areas rise and cooler areas sink.

Front

What is radiation?

Back

Radiation is the transfer of heat through electromagnetic waves, such as light or infrared radiation.

Front

How does a microwave transfer heat?

Back

A microwave primarily transfers heat through radiation.

Front

Why does warm air rise?

Back

Warm air rises because it expands, becomes less dense, and is pushed upward by cooler, denser air.

Front

What happens to a rock in the sun?

Back

A rock gets hot in the sun due to radiation from the sun's rays.

Front

What is an example of conduction?

Back

An example of conduction is touching a hot stove and feeling the heat transfer to your hand.

Front

What is an example of convection?

Back

An example of convection is the warm air rising from a heater and circulating in a room.

Front

What is an example of radiation?

Back

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

Front

What is the role of density in convection?

Back

In convection, warmer fluids become less dense and rise, while cooler fluids become denser and sink.