Phases of Matter & Density Test AA 2024

A gas has

• A definite volume and no definite shape
• A definite volume and definite shape
• No definite volume but definite shape
• no definite volume and no definite shape

In which of the substances in Figure 3-1 are the Intermolecular forces among the particles so weak that they can be ignored under ordinary conditions?

• A
• B
• C

In which phase of matter are particles only vibrating in a back and forth motion (moving at their slowest)?

• a gas
• a solid
• a liquid
• both b and c

Forces of attraction limit the motion of particles most in...... (Particles moving slowest)

• solid
• liquid
• gas
• both liquid and gas

Intermolecular forces limit the motion of particles most in

• liquid
• both b and c
• gas
• solid

If you move a substance from one container to another and its volume changes, the substance is a ...... the substance is moving freely.......

• solid
• liquid
• gas
• both liquid and gas

If you move a substance from one container to another and its shape does NOT change, the substance is a

• liquid
• both a and b
• gas
• solid

If you move a substance from one container to another and its shape changes, but the volume remains the same, the substance is a

• solid
• liquid
• gas
• both b and c

In this substance, the molecules flow around one another and are moving at moderate speed. Not as fast as a gas.

• solid
• liquid
• gas

What type of change occurs when water changes from a solid to a liquid? Use your brain!

• a chemical change
• a phase change
• a physical change
• both c and b