CONDUCTION,CONVECTION AND RADIATION

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). Warm fluid rises while cooler fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of energy in the form of waves or rays, such as light or heat, without the need for a medium.

Front

How does heat transfer occur in a pot on a stove?

Back

Heat transfer occurs through conduction when the pot is in direct contact with the hot stove.

Front

What is the original source of most energy used on Earth?

Back

The original source of most energy used on Earth is the energy that reaches Earth by radiation from the sun.

Front

What happens to warm air in a room?

Back

Warm air rises because of convection, creating a circulation of air in the room.

Front

What is an example of conduction?

Back

An example of conduction is touching a metal spoon that has been sitting in a hot pot of soup; the heat transfers from the soup to the spoon.

Front

What is an example of convection?

Back

An example of convection is boiling water; the hot water at the bottom rises to the top while cooler water sinks.

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of the sun on your skin, even when you are not in direct contact with it.

Front

What is the role of insulation in heat transfer?

Back

Insulation reduces heat transfer by conduction, convection, and radiation, keeping heat in or out of a space.