A heavy sphere is released from rest inside a vertical tube from which all air has been evacuated. Which statement describes the motion of the sphere as it falls?
The sphere falls with constant acceleration.
The sphere falls with constant velocity.
The sphere falls with decreasing velocity.
The sphere falls with increasing acceleration.
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.