Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, which is related to its temperature.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where energy is conducted from atom to atom.

Front

What is convection?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, without the need for a medium.

Front

What happens to molecules during heating?

Back

When a substance is heated, its molecules move faster and tend to spread apart, increasing the distance between them.

Front

What is the phase change from liquid to gas called?

Back

The phase change from liquid to gas is called evaporation.

Front

What is the phase change from gas to liquid called?

Back

The phase change from gas to liquid is called condensation.

Front

What is the phase change from solid to liquid called?

Back

The phase change from solid to liquid is called melting.

Front

What is the phase change from liquid to solid called?

Back

The phase change from liquid to solid is called freezing.

Front

How does heat transfer occur in a campfire?

Back

Heat transfer from a campfire to a person occurs primarily through radiation.