A sealed flexible pouch contains stationary oil. One flat section of the pouch is held at an angle to the horizontal.
Which statement describes the direction of the force that the oil exerts on this flat section?
Vertically downwards and independent of the section's orientation.
Perpendicular to the section and directed away from the oil.
Parallel to the section and directed towards its lower edge.
Perpendicular to the section and directed into the oil.
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.