Compressing and decompressing gasses

When a gas is compressed what happens?

Pick 3 correct answers

• Work is done on the gas.

• The gas heats up.

• The pressures of the gas increases.

• The gas cools down

• The pressure of the gas decreases

When a gas is decompressed what happens?

• Work is done on the gas.

• The gas heats up.

• The pressures of the gas increases.

• The gas cools down

• The pressure of the gas decreases

A gas can be compressed by....

Pick two correct answers.

• Putting more gas particles into the container

• Reducing the volume of a sealed container

• Taking gas particles out of a container

• Increasing the volume of a sealed container

A gas can be decompressed by....

Pick two correct answers.

• Putting more gas particles into the container

• Reducing the volume of a sealed container

• Taking gas particles out of a container

• Increasing the volume of a sealed container

What is method that will heat a gas up?

• Compressing it

• Decompressing it

• Shaking it

• Allowing some of the gas to escape.

The pressure produced by a compressed gas increases because...

• the gas particles collide with the container more often

• the gas particles collide with the container less often

• the gas particles get softer

• the gas particles move more slowly

The pressure produced by a decompressed gas reduces because...

• the gas particles collide with the container more often

• the gas particles collide with the container less often

• the gas particles get softer

• the gas particles move more slowly

Pumping up a bicycle tyre will...

Choose 3 correct statements.

• Compress the gas in the tyre

• Decompress the gas in the tyre

• Increase the number of particles in the tyre

• Reduce the number of particles in the tyre

• Cause the pressure in the tyre to increase

Letting air out of a bicycle tyre will...

Choose 3 correct statements.

• Compress the gas in the tyre

• Decompress the gas in the tyre

• Increase the number of particles in the tyre

• Reduce the number of particles in the tyre

• Cause the pressure in the tyre to decrease