Gas particles and pressure changes

The particles in a gas are constantly moving

• True

• False

Particles in a gas move randomly. This means they....

• move in different directions

• all move in the same direction

• don't move at all

• say odd things all the time.

What would make the particles in gas move faster?

• Heating it up

• Cooling it down

• Encouraging it

• Stirring it

Gas particles have more kinetic energy when they are...

• hotter

• colder

• pressurised

Gas particles produce a force on a surface when they _________ with it.

• collide

• slide

• bond

• argue

Heating a gas will ___________ its pressure.

• increase

• decrease

Cooling a gas will _____________ its pressure

• increase

• decrease

Putting more gas particles into a container will ____________ the pressure in it.

• increase

• decrease

Taking gas particles out of a container will ______________ the pressure it.

• decrease

• increase

When a gas is heated its pressure increase.

Tick the TWO explanations that

best explain why.

• the particles move faster and so collide with the container with a greater force.

• the particles collide with the container more often

• the particles collide with the container with less force

• the particles collide with the container less often