Intro to Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the kinetic energy of atoms and molecules in matter.

Front

What type of energy is associated with motion?

Back

Kinetic energy is the energy of motion.

Front

What happens to thermal energy during a chemical reaction that releases energy?

Back

It can be used to heat up other substances.

Front

How does the temperature of a substance change as its kinetic energy increases?

Back

The temperature increases.

Front

In which direction does thermal energy move?

Back

Thermal energy always moves from a warmer area to a cooler area.

Front

What is the relationship between kinetic energy and temperature?

Back

As kinetic energy increases, temperature increases.

Front

What is an example of a process that absorbs thermal energy?

Back

Melting ice absorbs thermal energy from the surroundings.

Front

What is an example of a process that releases thermal energy?

Back

Burning wood releases thermal energy into the environment.

Front

What is the main source of thermal energy in the universe?

Back

The sun is the main source of thermal energy.

Front

What happens to the kinetic energy of molecules in a gas when it is heated?

Back

The kinetic energy of the molecules increases.