Convection, Conduction, Radiation Practice

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

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler 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, which is why the Sun can warm the Earth through the vacuum of space.

Front

Give an example of conduction.

Back

An example of conduction is touching a hot stove. The heat transfers from the stove to your hand.

Front

Give an example of convection.

Back

An example of convection is boiling water. The hot water at the bottom rises to the top, while cooler water descends.

Front

Give an example of radiation.

Back

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

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises, creating convection currents.

Front

What is the primary method of heat transfer in liquids?

Back

The primary method of heat transfer in liquids is convection.

Front

What is the primary method of heat transfer in solids?

Back

The primary method of heat transfer in solids is conduction.

Front

How does the Sun warm the Earth?

Back

The Sun warms the Earth through radiation, sending heat in the form of electromagnetic waves.