CONDUCTION,CONVECTION AND RADIATION

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when molecules collide with each other, transferring energy.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when a hot liquid or air expands, becomes less dense, and rises, while cooler, denser liquid or air sinks.

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, allowing heat to be transferred through empty space.

Front

Which type of heat transfer occurs when you touch a hot stove?

Back

Conduction.

Front

What happens to molecules when they are heated?

Back

Higher temperature means faster moving molecules.

Front

What type of heat transfer creates currents in water?

Back

Convection.

Front

What is an example of radiation?

Back

A campfire warming your hands.

Front

What is an example of convection?

Back

Boiling water in a pot.

Front

What is an example of conduction?

Back

Walking on warm sand with bare feet.

Front

How does heat travel from the sun to the Earth?

Back

Through radiation.