A pressure sensor is fixed below the surface of the seawater in an uncovered marine aquarium. The sensor records a total pressure of 132 kPa. The atmospheric pressure acting on the surface of the seawater is 100 kPa. What is the pressure caused by the seawater at the sensor?
232 kPa232\ \mathrm{kPa}232 kPa
132 kPa132\ \mathrm{kPa}132 kPa
116 kPa116\ \mathrm{kPa}116 kPa
32 kPa32\ \mathrm{kPa}32 kPa
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.