A pressure probe is lowered into syrup in a food-processing vessel that is open to the air. The total pressure at the probe is 136 kPa. The pressure caused by the syrup at the probe is 33 kPa. What is the atmospheric pressure at the surface of the syrup?
136 kPa136\ \mathrm{kPa}136 kPa
169 kPa169\ \mathrm{kPa}169 kPa
103 kPa103\ \mathrm{kPa}103 kPa
84.5 kPa84.5\ \mathrm{kPa}84.5 kPa
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.