Two spheres of different masses are released at the same time from the same height inside a vacuum chamber.
What will happen and why?
Both spheres reach the bottom at the same time. Why: Acceleration of free fall is constant.
Both spheres reach the bottom at the same time. Why: The spheres fall at a constant speed.
The heavier sphere reaches the bottom first. Why: Gravitational force is greater on more massive objects.
The heavier sphere reaches the bottom first. Why: Acceleration of free fall increases with 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.