A steel ball is dropped into a tall tube of oil.
Figure shows how the velocity of the ball changes with time.
Figure: Velocity-time graph for a steel ball falling through a tube of oil

State the terminal velocity of the ball.
Explain, in terms of the forces acting on the ball, the shape of the graph between 0 s and 3.0 s.
The experiment is repeated with a ball of the same size but a greater mass. State and explain the effect on the terminal velocity.
38 exam-style questions on AQA GCSE Physics 5.6 Forces and motion, covering 5.6.1 Describing motion along a line, 5.6.2 Forces, accelerations and Newton's Laws of motion, and 5.6.3 Forces and braking. Each one has a worked solution and a mark scheme showing where the marks go.