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 are the three methods 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 through the movement of fluids (liquids or gases).

Front

Define radiation.

Back

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

Front

How does the Sun transfer heat to the Earth?

Back

The Sun transfers heat to the Earth through radiation.

Front

What type of heat transfer occurs when you touch a hot stove?

Back

Conduction.

Front

What type of heat transfer occurs when warm air rises and cool air sinks?

Back

Convection.

Front

Give an example of radiation in everyday life.

Back

Feeling the warmth of the sun on your skin.

Front

What happens to the thermal energy of a substance when it is heated?

Back

The thermal energy increases, causing the particles to move faster.