A student fills a tall can with water. The can has three small holes, X, Y and Z, at different heights in its side.
The Figure shows the jets of water coming out of the holes.
Figure

Describe what the Figure shows about how the pressure in the water changes with depth.
State the direction of the force exerted by the water on the side of the can.
The can is emptied and then filled to the same level with salt water. Salt water is denser than water.
Describe how the jet of salt water from hole Z is different from the jet of water from hole Z. Give a reason for your answer.
At hole Z, the pressure due to the water is 2.0 kPa. Atmospheric pressure is 100 kPa.
Give the total pressure in the water at hole Z.
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.