IGCSE Maths / Direct and inverse proportion
Pressure, force and area revision notes
Edexcel International GCSE Maths (4MA1), chapter 21: Direct and inverse proportion, specification point 4.4g. Part of the full course.
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Pressure is the force spread over each unit of area, so it depends on both the force and the size of the surface. The formula and correct area conversion help you calculate pressure in N/m².