A skydiver falls through the air and eventually reaches terminal velocity.
Why does the skydiver stop accelerating?
The weight of the skydiver has fallen to zero, so no downward force acts
The air resistance has become equal to the weight, so the resultant force is zero
The air resistance has become larger than the weight, so the skydiver slows
The skydiver has run out of energy, so no further acceleration is possible
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.