Matter Practice Test

Explain the changes in molecular motion of particles as a substance changes from a gas, to a liquid, to solid.

• As the changes occur, the energy decreases and the motion of the particles increase as energy is removed.

• As the changes occur, the energy decreases and the motion of the particles decrease as energy is removed.

• As the changes occur, the energy increases and the motion of the particles increase when energy is removed.

• As the changes occur, the energy increases and the motion of the particles decrease as energy is removed.

What type of matter is this?

• solid

• liquid

• gas

What type of matter is this?

• solid

• liquid

• gas

What type of matter is this?

• solid

• liquid

• gas

A cold cup from Zaxbys is left outdoors on a warm summer day. After several minutes, moisture appears on the outside of the cold cup. Which of the following statements best explains why the moisture appears?

• The warm air causes the molecules in the soda to slow, which causes deposition between the liquid in the can and the outside atmosphere.

• The warm air causes the molecules in the soda to slow, which causes the air to sublimate

• Water vapor in the air absorbs heat from the can and then changes into a liquid through melting.

• When water vapor in the air comes into contact with something cool, such as the outside of a cold soda can, the water molecules in the air slow down and condense into a liquid on the outside of the can.

The phase change from a solid to a liquid is called

• freezing

• melting

• condensation

• evaporation

The phase change from a liquid to a gas is called

• freezing

• melting

• condensation

• evaporation

The phase change from a gas to a liquid is called

• freezing

• melting

• condensation

• evaporation

The phase change from a liquid to a solid is called

• freezing

• melting

• condensation

• evaporation

In the graph pictured, at what temperature does the substance evaporate to form a gas?

• -25^oC

• 0^oC

• 50^oC

• 100^oC