Review: Convection, Conduction, Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving particles, transferring energy.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves. It does not require a medium, so it can occur in a vacuum, such as the heat from the Sun reaching the Earth.

Front

Example of conduction in everyday life?

Back

A metal spoon getting hot when placed in a pot of boiling water.

Front

Example of convection in everyday life?

Back

Warm air rising from a heater and circulating around a room.

Front

Example of radiation in everyday life?

Back

Feeling the warmth of the Sun on your skin.

Front

What happens to particles during conduction?

Back

Particles vibrate and collide with neighboring particles, transferring heat energy.

Front

What happens to particles during convection?

Back

Warmer particles move up while cooler particles move down, creating a flow.

Front

How does radiation differ from conduction and convection?

Back

Radiation does not require a medium to transfer heat, while conduction and convection do.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, such as rubber or wood.