Thermal Energy Transfer

Front

What is thermal energy transfer?

Back

The process of heat moving from one object or substance to another.

Front

What is conduction?

Back

The transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

The transfer of thermal energy through the movement of fluids (liquids or gases) where warmer parts rise and cooler parts sink.

Front

What is radiation?

Back

The transfer of thermal energy through electromagnetic waves, which can occur in a vacuum.

Front

What happens to warm air in convection?

Back

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

Front

What happens to cold air in convection?

Back

Cold air sinks because it is denser than warm air.

Front

Give an example of conduction.

Back

Walking on hot sand with bare feet.

Front

Give an example of convection.

Back

Warm air rising and cool air sinking in a room.

Front

Give an example of radiation.

Back

Feeling the warmth of the sun on your skin.

Front

What is the main difference between conduction and convection?

Back

Conduction requires direct contact, while convection involves the movement of fluids.