A concrete block is held fully submerged in a lake by a crane cable. The block displaces 0.018 m3 of water. The density of the water is 1000 kg/m3. The gravitational field strength is 10 N/kg. Calculate the upthrust on the block.
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.