Intro to Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in a substance, related to their temperature and motion.

Front

How does thermal energy affect the motion of atoms?

Back

Removing thermal energy causes atoms to vibrate slower, while adding thermal energy causes them to vibrate faster.

Front

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

Back

Evaporation is the process where a liquid turns into a gas due to an increase in thermal energy.

Front

What happens to an object as its thermal energy increases?

Back

As thermal energy increases, the object heats up.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion that particles have; as it increases, the temperature of the substance also increases.

Front

What is condensation?

Back

Condensation is the process where a gas turns into a liquid, usually when thermal energy is removed.

Front

What is the relationship between thermal energy and temperature?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance; as thermal energy increases, temperature increases.

Front

What happens during a chemical reaction that releases energy?

Back

A chemical reaction that releases energy can be used to heat up other substances.

Front

What is freezing?

Back

Freezing is the process where a liquid turns into a solid due to a decrease in thermal energy.

Front

What is sublimation?

Back

Sublimation is the process where a solid turns directly into a gas without becoming a liquid first.