Two spheres of different masses are released from rest at the same height inside a vacuum chamber.
What will happen, and why?
Both spheres reach the bottom at the same time; the acceleration due to gravity is independent of mass
Both spheres reach the bottom at the same time; they fall at a constant speed
The heavier sphere reaches the bottom first; the gravitational force on it is greater, so its acceleration is larger
The heavier sphere reaches the bottom first; the velocity of a falling object is proportional to its mass
204 exam-style questions on CIE IGCSE Physics Motion, covering Motion. Each one has a worked solution and a mark scheme showing where the marks go.