Convection, Conduction, and Radiation

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 conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight, which can travel through a vacuum.

Front

What are the three types of heat transfer?

Back

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

Front

How does warm air behave in convection?

Back

In convection, warm air rises because it is less dense than cool air, which sinks.

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 the circulation of warm air in a room heated by a radiator.

Front

What is an example of radiation?

Back

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

Front

How does the sun transfer energy to Earth?

Back

The sun transfers energy to Earth through radiation, specifically in the form of sunlight.

Front

What happens to the density of air when it is heated?

Back

When air is heated, it becomes less dense and rises.