Front

What is the process when a solid becomes a liquid?

Back

Melting

Front

The motion of the particles and strength of attraction determines an object’s state of matter. True or False?

Back

True

Front

What is the process when a liquid becomes a gas?

Back

Vaporization

Front

What happens to particles when a substance cools?

Back

The particles move closer together, leading to contraction.

Front

What is the process when a gas becomes a liquid?

Back

Condensation

Front

What is the process when a solid changes directly to a gas?

Back

Sublimation

Front

What is the term for the distance between particles in a solid?

Back

Particles in a solid are closely packed together.

Front

What is the term for the distance between particles in a gas?

Back

Particles in a gas are far apart.

Front

What happens to the energy of particles when they are heated?

Back

The energy of the particles increases, causing them to move faster.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in a substance.