A force acts normally on a surface. The force remains constant while the area is increased to three times its original value. What happens to the pressure?
It decreases to one-third of its original value.
It increases to three times its original value.
It decreases to one-ninth of its original value.
It increases to nine times its original value.
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.