A force F F\,F acts perpendicularly on a surface of area AAA. Which two changes both increase the pressure on the surface?
increase FFF and increase AAA
increase FFF and decrease AAA
decrease FFF and increase AAA
decrease FFF and decrease AAA
188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.