Thermal Energy - Heat Transfer

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

Front

What is heat transfer?

Back

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

Front

What are the three types of heat transfer?

Back

The three types of heat transfer are conduction, convection, and radiation.

Front

What is conduction?

Back

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

Front

Give an example of conduction.

Back

Holding a hot cup of cocoa is an example of conduction.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

Give an example of convection.

Back

A hot air balloon rising and falling as the balloon's air is heated or cooled is an example of convection.

Front

What is radiation?

Back

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

Front

Give an example of radiation.

Back

Warming your hands near a campfire is an example of radiation.

Front

What happens to particles in a substance when it is heated?

Back

When a substance is heated, its particles gain energy and move faster, causing the substance to expand.