Conduction, Convection, Radiation

Front

What are the three methods of heat transfer?

Back

Conduction, Convection, and Radiation.

Front

Which method of heat transfer involves direct contact between materials?

Back

Conduction.

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

How does heat energy reach the Earth from the Sun?

Back

Through radiation.

Front

What is radiation in the context of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

Front

What happens to warm air in convection?

Back

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

Front

What is the role of insulation in heat transfer?

Back

Insulation reduces heat transfer by conduction, convection, and radiation.

Front

Can you give 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 in everyday life?

Back

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

Front

How does radiation differ from conduction and convection?

Back

Radiation does not require a medium (like air or water) to transfer heat, while conduction and convection do.