States of Matter (Pre-test)

Substances which take the shape of their container and take up a fixed amount of space are known as:

• solids.

• liquids.

• gases.

• fluids.

Which of the following are best at diffusing?

• Solids.

• Liquids.

• Gases.

• Fluids.

As the temperature of a substance increases, its particles:

• move faster.

• move slower.

• move at the same speed, but further apart.

• stick together more.

A substance has a mass of 6g and a volume of 2mL. Its density is:

• 6 g/mL

• 2 g/mL

• 3 g/mL

• 12 g/mL

The denser a material:

• the more tightly its atoms are packed.

• the greater its volume.

• the more likely it will float in water.

• the more space between its atoms.

What is the name of the process in which a liquid turns into a solid?

• Melting

• Boiling

• Condensing

• Freezing

What is the name of the process in which a gas turns into a liquid?

• Melting

• Boiling

• Condensing

• Freezing

What does the particle model predict about particle movement when a solid is heated?

• The particles vibrate faster in the same position.

• The particles move closer and vibrate faster.

• The particles move farther apart and vibrate faster.

• The particles move farther apart and vibrate more slowly.

A steel ball just fits through a steel ring at room temperature. If just the ball is heated by a Bunsen burner:

• the ball will easily fit through the ring.

• the ball will not fit through the ring.

• the ball will continue to just fit through the ring.

• the ball will contract.

Oil is less dense than water. This means that:

• water will float on oil.

• oil will float on water.

• water and oil will mix together.

• oil will react with water.