A sensor is lowered into an open tank containing a liquid of density 1120 kg/m3. The flat sensing face has an area of 18 cm2 and is at a vertical depth of 4.0 m below the surface of the liquid.
Atmospheric pressure is 1.01 × 105 Pa.
gravitational field strength, g=9.8 N/kgg = 9.8\ \text{N/kg}g=9.8 N/kg.
Calculate the total force acting normal to the outside of the sensing face.
108 exam-style questions on AQA GCSE Physics 5.5 Pressure and pressure differences in fluids, covering 5.5.1 Pressure in a fluid and 5.5.2 Atmospheric pressure. Each one has a worked solution and a mark scheme showing where the marks go.