Heat transfer

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. For example, when you touch a hot stove, heat moves from the stove to your hand.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). An example is how warm air rises and cool air sinks, creating a cycle.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of waves. An example is feeling the warmth of the sun on your skin.

Front

What happens to heat when it moves from hot to cold?

Back

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

Front

Can you give an example of conduction?

Back

An example of conduction is when you hold a metal spoon in a hot pot, and the heat travels from the pot to the spoon and then to your hand.

Front

Can you give an example of convection?

Back

An example of convection is a lava lamp, where heated wax rises and cools down as it moves away from the heat.

Front

Can you give an example of radiation?

Back

An example of radiation is feeling the warmth from a campfire without touching it.

Front

What is the main difference between conduction and convection?

Back

Conduction requires direct contact between materials, while convection involves the movement of fluids.

Front

What is an everyday example of radiation?

Back

An everyday example of radiation is feeling the heat from a light bulb or the sun.

Front

What is the role of temperature in heat transfer?

Back

Temperature determines the direction of heat transfer; heat moves from warmer areas to cooler areas.