Properties of Matter

In a solid, the particles

• overcome the strong attraction between them

• vibrate in place

• slide past one another

• move independently of one another

A gas

• has a definite volume but no definite shape

• has a definite shape but no definite volume

• has no definite shape and no definite volume

• has particles that are always close together

At higher temperatures

• particles in an object move faster

• gas particles bump into walls less often

• a gas contracts

• particles in an object have less energy

The reverse of condensation is

• boiling

• evaporation

• freezing

• sublimation

What will happen to the pressure of a gas when the temperature decreases?

• the pressure will decrease

• the pressure will increase

• the pressure will not change

Dew collecting on a spider web in the early morning is an example of

• condensation

• evaporation

• sublimation

• melting

Which of the following changes of state is exothermic?

• evaporation

• melting

• freezing

• all of the answer choices apply

A solid changing directly to a gas is called ___________.

• melting

• freezing

• evaporation

• sublimation

When a solid changes to a liquid, it is called ______________

• melting

• freezing

• evaporation

• sublimation

_______ have a definite shape and a definite volume

• liquid

• solid

• gas