A- 3 Thermal Energy and Particle Motion (1)

Front

What is a particle?

Back

A particle refers to atoms, molecules, and compounds; essentially, all matter is made up of particles.

Front

In which direction does heat flow?

Back

Heat flows from a warmer object to a cooler object.

Front

What happens to a liquid when it gains energy?

Back

If a liquid gains energy, it can change into a gas.

Front

What state of matter has no definite shape or volume?

Back

Gas has no definite shape or volume, with particles that are far apart and move freely.

Front

Does faster particle movement mean less kinetic energy?

Back

False. The faster the particles move, the more kinetic energy they have.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, related to temperature.

Front

What is the relationship between temperature and particle motion?

Back

As temperature increases, the motion of particles increases.

Front

What is the state of matter with a definite shape and volume?

Back

Solid has a definite shape and volume, with particles closely packed together.

Front

What is the process of a solid turning into a liquid called?

Back

Melting.

Front

What is the process of a gas turning into a liquid called?

Back

Condensation.