Review Gas Pressure NP #1-#4

_____________________ is the measure of the kinetic energy of the particles in a sample. 

• Velocity
• Mass
• Motion
• Temperature

Collisions between gas particles are said to be "elastic" because _________________________.

• they have a stretchy waistband
• kinetic energy is lost between particles
• kinetic energy is not lost between particles and is instead transferred
• particles move in a straight line

Which of the following has potential energy?

• a car moving at 55 mph
• a person running 4 km/hour
• a stretched rubberband 

True or False: Gases have a higher density than solids or liquids. 

• True
• False

Place the following states of matter in order from least dense to most dense: 

• solid, liquid, gas
• gas, liquid, solid
• liquid, gas, solid
• solid, gas, liquid

Which of the following explains why gases are less dense than solids?

• Gases have faster moving particles that are very close together.
• Gases have slow moving particles that are very close together.
• Gases have faster moving particles that are far apart.
• Gases have slow moving particles that are close together.

Which would be the most dense: Liquid Mercury, Solid Gold, or Helium Gas?

• Gold
• Liquid Mercury
• Helium
• Gold, Liquid Mercury, and Helium all have the same density.

True or False: There are fewer particles found in gases, than there are solids and liquids of the same volume. 

• True
• False

Gases can expand when the volume of the container ______________.

• Increases
• Decreases
• Remains the same

True or False: A compressed gas is more dense than a gas in an expanded container.

• True
• False