Conduction, Convection, & Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

Front

Give an example of conduction.

Back

An example of conduction is an ice cube melting in a person's hand.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm fluid rises while cool fluid sinks, creating a circulation pattern.

Front

Give an example of convection.

Back

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

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through.

Front

Give an example of radiation.

Back

An example of radiation is the heat from a lamp warming a lizard.

Front

What is the main difference between conduction and convection?

Back

The main difference is that conduction occurs through direct contact, while convection involves the movement of fluids.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, preventing heat transfer.

Front

Give an example of an insulator.

Back

An example of an insulator is rubber or wood.

Front

What happens to warm air in a room?

Back

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