Heat Transfer

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises while cool air sinks, creating a circulation pattern.

Front

How does heat transfer occur when holding hands with someone?

Back

Heat energy from your friend's warmer hand transfers to your colder hand through conduction.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat through electromagnetic waves, such as sunlight warming the Earth.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is an example of convection?

Back

An example of convection is boiling water, where hot water rises to the top and cool water sinks to the bottom.

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 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, causing cooler air to sink.

Front

What is the difference between conduction and convection?

Back

Conduction is heat transfer through direct contact, while convection is heat transfer through the movement of fluids.

Front

What role does temperature play in heat transfer?

Back

Temperature differences drive heat transfer; heat moves from areas of higher temperature to areas of lower temperature.