Thermal Energy Transfer 24-25

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

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.

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

Give an example of conduction.

Back

An example of conduction is when a metal spoon is heated by being placed in a hot pot of soup.

Front

Give an example of convection.

Back

An example of convection is boiling water in a pot, where hot water rises to the top and cooler water sinks.

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 heat during thermal energy transfer?

Back

Heat always transfers from an area of high temperature to an area of low temperature.

Front

What is the role of temperature in heat transfer?

Back

Temperature differences drive heat transfer; heat moves from warmer objects to cooler ones.

Front

What is an insulator?

Back

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

Front

What is a conductor?

Back

A conductor is a material that allows heat to pass through easily, such as metals like copper and aluminum.