Thermal Energy Transfer Review

Front

What is convection?

Back

Convection is the transfer of heat through currents in fluids (liquids and gases) caused by the movement of warm and cool molecules.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light or infrared radiation.

Front

What happens to warm molecules in convection?

Back

Warm molecules rise because they are less dense than cool molecules.

Front

What happens to cool molecules in convection?

Back

Cool molecules sink because they are denser than warm molecules.

Front

Give an example of conduction.

Back

An example of conduction is touching a hot stove and feeling the heat transfer to your hand.

Front

Give an example of convection.

Back

An example of convection is warm air rising and cool air sinking in a room, creating air currents.

Front

Give an example of radiation.

Back

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

Front

What is the main difference between conduction and convection?

Back

Conduction occurs through direct contact, while convection occurs through the movement of fluids.

Front

What type of heat transfer occurs in an attic feeling warmer than a basement?

Back

This is an example of convection.