Pressure in Liquids and Gases

1 mark · Easy

Give one practical example, not using a can or bottle, that shows pressure in a gas acts in all directions at a point.

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Inflated car tyre pressing outwards on all the walls equally.

Also accept: A balloon expanding equally in all directions.; A soccer ball being round because the air pushes outwards everywhere inside.

Common mistakes: Responses describing only downward pressure.

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Marking points

B1 · 1 mark · Gives a valid example showing gas pressure acts in all directions.

Worked solution

Example: The air in a car tyre pushing equally on all sides of the tyre.