Heat Transfer Matter Weather Ecosystems

Front

What is heat transfer?

Back

Heat transfer is the process of thermal energy moving from one object or substance to another due to a temperature difference.

Front

In which direction does heat transfer occur?

Back

Heat transfer occurs only from warm objects to colder ones.

Front

What happens when you touch something cold?

Back

When you touch something cold, heat from your hand moves into the cold substance.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer areas rise and cooler areas sink.

Front

Give an example of convection.

Back

An example of convection is when you are making soup and the water is rising and lowering.

Front

What type of heat transfer occurs when walking on warm sand?

Back

Walking on warm sand demonstrates conduction.

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 sunlight.

Front

What is the role of friction in heat transfer?

Back

Friction transforms mechanical energy into thermal energy, generating heat.

Front

What happens when you rub your hands together on a cold day?

Back

Rubbing your hands together on a cold day uses friction to transform mechanical energy into thermal energy.