In a precision high-pressure laboratory micro-syringe, a linear actuator exerts a force of 18.4 N onto a tiny plunger. This generates a pressure of 1.15 × 107 Pa within the hydraulic fluid.
Calculate the cross-sectional area of the plunger. Give your answer in standard form and include the appropriate unit.
18 exam-style questions on AQA GCSE Physics 5.5 Pressure and pressure differences in fluids, covering 5.5.1 Pressure in a fluid and 5.5.2 Atmospheric pressure. Each one has a worked solution and a mark scheme showing where the marks go.