A billiard ball strikes the cushion of a billiard table perpendicularly and rebounds with the same speed in the opposite direction.
What happens to the kinetic energy and the momentum of the billiard ball?
Kinetic energy changes; momentum changes
Kinetic energy changes; momentum remains constant
Kinetic energy remains constant; momentum changes
Kinetic energy remains constant; momentum remains constant
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.