Radiation, convection, conduction

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light or infrared radiation, without the need for a medium.

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 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 move?

Back

Heat moves from warm places to cooler places.

Front

What is an insulator?

Back

An insulator is a material that reduces the flow of heat, preventing heat transfer.

Front

What is a conductor?

Back

A conductor is a material that allows heat to flow through it easily.

Front

Give an example of radiation in everyday life.

Back

An example of radiation is the heat you feel from the Sun or a lamp.

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 warm air rising and cool air sinking in a room, creating a circulation of air.

Front

What type of heat transfer occurs in a vacuum?

Back

Radiation is the only type of heat transfer that can occur in a vacuum.