Pressure

Force per area

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Pressure $P = F/A$, measured in pascals (N/m²).
• A small area gives high pressure (knives). A large area gives low pressure (snowshoes).
• Air pressure at sea level is about 101 kPa: roughly 10 tonnes per square metre.

Steps

1. Snowshoes
2. Pressure
3. High heels
4. Ten metres down
5. Staying on top
6. The weight of air