# Pressure

Pressure is the force per unit area.

This means that the pressure a solid object exerts on another solid surface is its in newtons divided by its area in square metres.

Pressure can be determined using the following equation.

• The unit for pressure is the pascal ( ).
• One pascal is equivalent to one newton per square metre.
• Atmospheric pressure is approximately .
Question

A cube-shaped box of is sitting on a level table. If the length of each edge of the box is , calculate the pressure the box exerts on the table.

Step 1

First calculate the weight of the box.

Step 2

Then calculate the area of the box in contact with the table.

Area of box in contact with table

Step 3

Now calculate the pressure.