Phase Changes, Heat and Temperature

Front

What are the three main phases of matter?

Back

Solid, liquid, and gas.

Front

How do particles behave in a solid?

Back

Particles vibrate in place.

Front

What is the relationship between temperature and kinetic energy?

Back

Temperature is a measure of the average kinetic energy of particles.

Front

What happens to a substance at its boiling point?

Back

It changes from a liquid to a gas.

Front

What is the boiling point of water in Celsius?

Back

100°C.

Front

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

Back

Melting.

Front

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

Back

Freezing.

Front

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

Back

Vaporization.

Front

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

Back

Condensation.

Front

What is the significance of the heating curve of a substance?

Back

It shows the changes in temperature and state as heat is added.