A workshop clamp presses on a sample. The clamp can apply a force of 300 N, 450 N or 1800 N over a contact area of 0.015 m², 0.030 m² or 0.060 m². Each force setting can be used with each contact area setting.
Which available combination of force and contact area would give the lowest pressure on the sample?
1800 N over 0.060 m²
450 N over 0.030 m²
300 N over 0.015 m²
300 N over 0.060 m²
108 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.