A cyclist wears a helmet with a crushable foam lining. In a crash the foam increases the time taken for the cyclist's head to stop. What is the effect of the foam on the cyclist's head?
the change in momentum is smaller and the force is smaller
the change in momentum is the same and the force is smaller
the change in momentum is smaller and the force is larger
the change in momentum is the same and the force is larger
40 exam-style questions on AQA GCSE Physics 5.7 Momentum (HT only), covering 5.7.1 Momentum is a property of moving objects, 5.7.2 Conservation of momentum, and 5.7.3 Changes in momentum. Each one has a worked solution and a mark scheme showing where the marks go.