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 the motion of objects?

Back

Kinetic energy is the energy of motion.

Front

What happens to an object when its thermal energy increases?

Back

The object heats up.

Front

Why do atoms have kinetic energy?

Back

Atoms have kinetic energy because they are always vibrating.

Front

What occurs when thermal energy is removed from a substance?

Back

The substance might freeze.

Front

What is the relationship between thermal energy and temperature?

Back

As thermal energy increases, the temperature of the substance typically increases.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

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

Back

The particles move faster and spread apart.

Front

What is the effect of cooling a substance?

Back

Cooling a substance generally decreases its thermal energy and can cause it to contract.

Front

What is the process called when a liquid turns into a gas?

Back

The process is called evaporation.