Heat Transfer

Front

What is heat transfer?

Back

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

Front

What are the three main types of heat transfer?

Back

Conduction, Convection, and Radiation.

Front

Define conduction.

Back

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

Front

Define convection.

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases) due to differences in temperature and density.

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

What happens to particles in an object as temperature increases?

Back

Particles in an object move faster as temperature increases.

Front

What is an example of convection?

Back

An example of convection is hot air rising and cold air sinking, such as in a room with a heater.

Front

How does heat transfer occur when using a cold pack on an injury?

Back

Heat is transferred from the person to the cold pack, causing the person to feel cooler.

Front

What happens to magma when it increases in temperature?

Back

Hot magma becomes less dense and rises towards the surface.

Front

What is the role of density in convection?

Back

In convection, warmer, less dense fluids rise while cooler, denser fluids sink.