1819 Thermal Energy Review

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when molecules collide and transfer energy.

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 fluid 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 from the sun to reach the Earth.

Front

How does heat transfer occur when walking on warm sand?

Back

Heat transfer occurs through conduction when your bare feet come into direct contact with the warm sand.

Front

What type of heat transfer occurs when a pot is heated on a stove?

Back

Heat transfer occurs through conduction as the burner heats the pot directly.

Front

What happens to molecules in a solid?

Back

In a solid, molecules are closely packed together and vibrate in place, maintaining a fixed shape.

Front

What type of heat transfer happens when the sun heats your body?

Back

Heat transfer occurs through radiation as the sun's rays warm your skin.

Front

What is an example of convection in everyday life?

Back

An example of convection is when boiling water in a pot; the hot water rises to the top while cooler water sinks.

Front

What is the role of insulation in heat transfer?

Back

Insulation reduces heat transfer by trapping air, which is a poor conductor of heat, keeping warmth in or out.

Front

How does heat transfer affect weather patterns?

Back

Heat transfer through convection in the atmosphere helps create wind and weather patterns by moving warm and cool air.