motion p2.1

  • Created by: faiqa1331
  • Created on: 07-10-18 06:19
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  • motion p2.1
    • vectors and scalars (p2.1.2)
      • vector
        • has magnitude and distance
        • example: volcity and displacement
      • scalar
        • only has magnitude
        • exaples: distance and speed
    • acceleration (p2.1.3)
      • the change in velocity is called acceleration
      • the gradient of a volcity-time grpah shows the accleleration
      • EQUATION: acceleration (m/s2) = change in velocity (m/s) / time (s)
    • distance time graph (p2.1.4)
      • straight line shows stationary
      • diagonal line shows constant speed
      • a curve shows acceleration/deceleration
      • gradient give you speed
      • EQUATION: average speed (m/s) = total distance (m) / time (s)
    • velocity time graph (p2.1.5)
      • straigh line shows constant velocity
      • a steep line shows acceleration
      • gradient gives you accerelation
      • the area under the graph shows the displacement
      • EQUATION: velocity (m/s) = displacement (m) / time (s)
    • motion and kenetic energy (p2.1.6)
      • EQUATION:  kinetic energy (j) = mass (kg) * velocity2 (m/s) / 2
      • SUVAT EQUATIONS
        • v2 - u2 = 2as
        • v = u + at
        • s =  ut + 1/2at2
        • s = (u+v/2) * t
      • S = displacement  U = initial velocity  V = finaly velocity  A = acceleration    T = time

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