A beam of particles is directed at a barrier and rebounds. According to Newton's laws of motion, the force exerted on the barrier by the particles during this collision is directly caused by which of the following?
the change in kinetic energy of the particles
the change in momentum of the particles
the constant speed of the particles
the potential energy of the particles
78 exam-style questions on CIE IGCSE Physics Momentum, covering Momentum. Each one has a worked solution and a mark scheme showing where the marks go.