Which situation is an example of a force acting over a large area to produce a small pressure?
A sharp thumbtack being pushed into a notice board
A chef slicing a tomato with a very sharp blade
A heavy tractor with wide tires driving across a muddy field
An ice pick piercing through thick ice
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.