Motion

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  • Created by: sophie
  • Created on: 17-11-10 19:38

Distance-time graphs:

  • The slope in a distance-time graph represents speed.
  • Speed (m/s) = distance (m) / time (s) 
  • The steeper the line on a distance-time graph, the greater the speed it represents.

Summary questions:

  • The unit of speed is the metre/second.
  • An object moving at a steady speed, travels the same distance every second.
  • Speed= distance / time

                   = 1800 / 60

                   = 30 m/s

Velocity and Acceleration:

  • Velocity is speed in a given direction.
  • Acceleration is the change in velocity per second.
  • A body travelling at a steady speed is accelerating if its direction is changing.
  • Acceleration

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