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 the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is radiation?

Back

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

Front

What happens to warm air in a room?

Back

Warm air rises because it is less dense than cold air.

Front

What happens to cold air in a room?

Back

Cold air falls because it is denser than warm air.

Front

How many types of heat transfer are there?

Back

There are three types of heat transfer: conduction, convection, and radiation.

Front

What is an example of conduction?

Back

An example of conduction is when a metal spoon gets hot after being stirred in hot coffee.

Front

What is an example of convection?

Back

An example of convection is warm air rising and cold air sinking 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, warm fluids become less dense and rise, while cooler fluids become denser and sink.