Two gravity-fed infusion systems use bags of different liquids. The table gives the vertical height of liquid above each outlet and the density of the liquid.
| System | Height of liquid above outlet in m\mathrm{m}m | Liquid density in kg/m3\mathrm{kg/m^3}kg/m3 |
|---|---|---|
| A | 0.80 | 1000 |
| B | 0.65 | 1100 |
Use g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg.
Calculate how much greater the pressure due to the liquid is at the outlet of system A than at the outlet of system B.
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.