During a materials test, a pad applies a pressure of 2000 Pa over an area of 0.040 m2 on a flat sample. What normal force does the pad exert on the sample?
80 N80\ \mathrm{N}80 N
8 N8\ \mathrm{N}8 N
2000 N2000\ \mathrm{N}2000 N
50000 N50000\ \mathrm{N}50000 N
132 exam-style questions on Edexcel GCSE Physics 15.2 Pressure in fluids, covering 15.2.1 Atmospheric pressure and height, 15.2.2 Pressure in fluids, 15.2.3 Pressure, force and area, 15.2.4 Pressure and depth, 15.2.5 Pressure in liquids: depth and density, 15.2.6 Upthrust, and 15.2.7 Floating and sinking. Each one has a worked solution and a mark scheme showing where the marks go.