GCSE Questions: Pressure, buoyancy, upthrust and fluids![]() Q2. The diagram shows a container filled with water. The three holes in the side of the container are sealed with rubber stoppers. (a) The water exerts a force of 27 N on the bottom of the container. The cross-sectional area of the bottom of the container is 0.009 m2. Calculate the pressure exerted by the water on the bottom of the container. Pressure = Force/Contact area Pressure = 27/0.009 Pressure = 3,000 [4 marks] (b) The container is put under running water from a tap and the three rubber stoppers removed. The diagram below shows the path taken by the water escaping from the top and bottom holes.
[1 mark]
[1 mark] (c) The diagram below shows a simple model of a liquid. When a force pushes down on the marbles, the marbles push the sides and bottom of the container outwards. What can be concluded from this model about the pressure in a liquid? Pressure acts in all directions [1 mark]
[7 Marks TOTAL] |
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