gas pressure

What happens to gas pressure when the temperature is decreased?

• It increases

• It stays the same

• It decreases

Which of the following does not affect gas pressure?

• Temperature

• Type of gas

• Volume of the container

What happens to gas pressure when the temperature is increased?

• It stays the same

• It increases

• It decreases

What causes gas pressure?

• Particles colliding with the walls of a container

• Particles vibrating in a solid

• The density of a gas

What happens to gas pressure when the volume of a sealed container is increased?

• It stays the same

• It decreases

• It increases

Describe three ways to increase the pressure inside the bicycle tyre.

• Remove some of the air, lift up the bike and heat up the tyre.

• Remove some of the air, sit on the bike and heat up the tyre

• Add more air, sit on the bike and heat up the tyre.

• Add more air, sit on the bike and cool down the tyre.

Why do bicycles have inflatable tyres?

• The gas inside them can be easily compressed, so they can help to absorb the bumps in the road for a smoother ride.

• The gas makes the tyres difficult to puncture.

• The road surface helps attract the gas particles to the ground.

Label the space between the particles in this diagram.

• Air

• Gas

• Nothing