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

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

With the standard triangular profile the acceleration increases or decreases almost instantaneously, as shown in the acceleration and jerk profile graph at time 0.0, 0.5, and 1.0.