Motion - Chapter 1 Physics Unit 2 Revision 2.0 / 5 based on 1 rating ? PhysicsForces and MotionGCSEAQA Created by: Lily BrightonCreated on: 29-12-12 22:12 What does the gradient of the line on a distance-time graph represent? The speed of the object. 1 of 6 What is the difference between speed and velocity? Velocity is speed in a certain direction. 2 of 6 What does a horizontal line on a velocity-time graph represent? Constant velocity but zero acceleration. 3 of 6 What is the SI unit of acceleration? m/s² 4 of 6 What does an upwardly curving line represent on a d-t graph? Increase in velocity. 5 of 6 What does an upwardly curving line represent on a v-t graph? Increase in acceleration. 6 of 6
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