8.1.5 Phase Changes

Front

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

Back

Melting

Front

What is the formula for density?

Back

density = mass / volume

Front

What is the energy of an object due to its motion?

Back

Kinetic energy

Front

Which state of matter has a definite shape and volume?

Back

Solid

Front

What happens to the speed of molecules when they gain kinetic energy?

Back

They move faster.

Front

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

Back

Evaporation

Front

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

Back

Condensation

Front

What is the term for the amount of space an object occupies?

Back

Volume

Front

What is the term for the mass of a substance per unit volume?

Back

Density

Front

What happens to the temperature of a substance during a phase change?

Back

It remains constant.