A swimmer pushes backwards on the water with her hands. The swimmer then moves forwards through the water.
Explain how the swimmer pushing backwards on the water causes the swimmer to move forwards.
The swimmer stops pushing and glides through the water. Give the name of the contact force that slows the swimmer down.
The weight of the swimmer acts downwards on her. Explain why weight is a non-contact force.
Give one other example of a non-contact force.
40 exam-style questions on AQA GCSE Physics 5.1 Forces and their interactions, covering 5.1.1 Scalar and vector quantities, 5.1.2 Contact and non-contact forces, 5.1.3 Gravity, and 5.1.4 Resultant forces. Each one has a worked solution and a mark scheme showing where the marks go.