P9 Motion

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  • Created by: Lucy Hart
  • Created on: 20-01-20 19:27
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  • P9 Motion
    • P9.1 Speed + distance time graph
      • distance = speed x time
      • horizontal line = stationary
      • constant speed = straight line sloping upwards
    • P9.2 Velocity + acceleration
      • velocity - speed in given direction
        • moving around a circle, direction changes so constant speed but not constant velocity
      • acceleration - change of velocity per second
      • acceleration = change in velocity/time
    • P9.3 Velocity time graphs
      • motion sensor linked to computer can be used to measure velocity changes
      • line goes up - velocity increases with time
        • line is straight - increase in velocity the same every second (constant acceleration)
          • horizontal line - constant velocity (acceleration = 0)
      • gradient = acceleration
      • area under graph = distance travelled
    • P9.4 Analysing motion graphs
      • distance time graphs
        • to find out speed at particular time or distance
          • draw tangent to line
            • draw triangle
              • gradient of line = height of triangle (d)/ base of triangle (t)

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