Key fact The gradient of speed-time and velocity-time graphs represent acceleration. The area under a speed-time graph represents the distance travelled.

Learn and revise motion in a straight line, acceleration and motion graphs with BBC Bitesize Combined Science AQA Synergy study guide.

A theory based on the distortion of large water drops is used to calculate the drag and acceleration of drops in the laboratory from rest to terminal velocity. The results show that the drag ...