Conduction, Convection, 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 areas of a fluid rise and cooler, denser areas sink, creating a circulation pattern.

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

How does heat move between objects?

Back

Heat moves from warmer objects to cooler objects until thermal equilibrium is reached.

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 boiling water, where hot water rises to the top and cooler water sinks to the bottom.

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of the sun on your skin.

Front

What happens to particles during conduction?

Back

During conduction, particles collide and transfer energy to neighboring particles, causing them to vibrate faster.

Front

What happens to fluids during convection?

Back

In convection, warmer fluids become less dense and rise, while cooler fluids become denser and sink, creating a cycle.

Front

How does the sun's heat reach the Earth?

Back

The sun's heat reaches the Earth through radiation, as electromagnetic waves travel through the vacuum of space.