An explorer wears heavy hiking boots, each having an area of contact with the ground of 0.015 m20.015\text{ m}^20.015 m2.
The explorer weighs 750 N750\text{ N}750 N.
Write down the equation that relates pressure, force, and area.
Calculate the pressure exerted by the explorer on the ground when standing still with both boots flat on the ground.
The explorer is crossing a muddy field. Explain, stating the relevant physics, why this explorer is at an advantage over another explorer of the same weight who is wearing boots with a smaller contact area.
The explorer has to cross a patch of thin, frozen ice. Suggest one action the explorer could take to reduce the risk of the ice breaking under their weight.
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.