A hydraulic actuator uses a square piston of side length 5.0 mm to compress fluid. When a force of 1.2 kN1.2\text{ kN}1.2 kN is applied to the piston, what is the pressure exerted on the fluid?
0.48 MPa0.48\text{ MPa}0.48 MPa
4.8 MPa4.8\text{ MPa}4.8 MPa
48 MPa48\text{ MPa}48 MPa
240 MPa240\text{ MPa}240 MPa
33 exam-style questions on OCR GCSE Physics Pressure. Each one has a worked solution and a mark scheme showing where the marks go.