Physics 2

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  • Created by: Sarah
  • Created on: 01-12-12 10:42
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  • P2.1
    • Distance-time graphs
      • The gradient of a line on a distance-time graph represents speed
      • Fast = steep
      • speed (m/s) = distance (m) / time (s)
    • Using graphs
    • Velocity and acceleration
      • Velocity = speed in a given direction (m/s)
      • The acceleration of an object is its change of velocity per second
      • Acceleration (m/s squared) = change in velocity (m/s) / time taken for the change (s)
        • The acceleration of an object is its change of velocity per second
      • Change in velocity = final velocity - initial velocity
        • a (m/s squared) = v (m/s) - u (m/s)/  t (s)
      • Deceleration  = change in velocity per second when as object slows down
      • More about velocity-time graphs
        • The gradient of the line on a velocity-time graph represents acceleration
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