An underwater exploration vehicle is at a depth of 4000 m4000\text{ m}4000 m below the surface of the ocean.
The average density of the sea water above the vehicle is 1020 kg/m31020\text{ kg/m}^31020 kg/m3. The atmospheric pressure at the surface is 102 000 Pa102\,000\text{ Pa}102000 Pa. (Use g=10 m/s2g = 10\text{ m/s}^2g=10 m/s2 for the acceleration due to gravity.)
How many times greater is the pressure due to the ocean water than the atmospheric pressure?
188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.