According to the kinetic-molecular theory, particles of matter

• are always fluids
• are in constant motion
• have different colors
• have different shapes

What quantity does mL measure?

• density
• pressure
• volume
• temperature

What happens at a temperature of 0 K?

• water freezes (i.e turns into a solid)
• the particles get less dense
• the pressure increases
• the particles stop moving

Which picture has the largest pressure?

• 
• 
• 

Which picture has the highest temperature?

• 
• 
• 

Compressed air from a scuba tank cools off as a diver swims to deeper levels. What happens to the pressure of the air in the tank?

• the pressure goes down
• the pressure stays the same
• the pressure goes up
• it is impossible to tell

What will happen to the volume of a gas as it is heated?

• the volume will decrease
• the volume will increase
• nothing will happen to the volume
• it is impossible to tell

Which is not an assumption of the kinetic-molecular theory?

• Matter is composed of tiny particles.
• The particles of matter are in continual motion.
• Particles constantly collide with each other with the container.
• Over time, particles lose energy when they run into each other.

In car engine, the piston pushes down the gas vapors causing the volume of the gas to decrease. What will happen to the gas's pressure?

• nothing will happen to the pressure
• the pressure will decrease
• the pressure will increase
• it is impossible to tell

An inflated balloon is placed in a refrigerator. Which of the following will happen?

• the volume of the balloon will decrease
• the speed of the particles in the balloon will increase
• the temperature of the balloon will increase
• the pressure in the balloon will increase