Convection, Conduction and Radiation

Front

What is convection?

Back

Convection is the transfer of heat by currents through liquids or gases.

Front

What is conduction?

Back

Conduction is the transfer of thermal or heat energy through direct contact between materials.

Front

What is thermal conduction?

Back

Thermal conduction is the transfer of heat through a material, typically solids, due to direct contact.

Front

What happens to more dense currents during convection?

Back

More dense currents sink.

Front

What happens to less dense currents during convection?

Back

Less dense currents rise.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

What is an example of conduction?

Back

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

Front

What is an example of convection?

Back

An example of convection is warm air rising and cool air sinking in a room.

Front

What is an example of radiation?

Back

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

Front

What is thermal insulation?

Back

Thermal insulation is a material that reduces the transfer of heat.