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  • Physics
    • Speed (Distance time graphs)
      • Measure of how far an object moves in a given time
      • Average speed= Distance travelled/Time taken
    • Velocity (Velocity time graphs)
      • The speed and direction in which an object is moving
      • Area under the line= Distance travelled
      • To work out area of triangle on graph: Base x Height/2
      • Gradient of line= Acceleration
    • Acceleration
      • Measure of how quick its velocity changes
      • De/Acceleration= Change in speed/Time
        • Change in speed (m/s)
        • Time taken (s)
        • Acceleration (m/s 2)
    • Forces
      • Reaction force
        • Upwards force
      • Resultant force
        • The force that is left when you add all the forces acting on an object
        • If forces are balanced, speed and direction of object will remain
        • If forces are unbalanced, speed and direction of object may change
      • Force= Mass x Acceleration
        • Mass (kg)
        • Force (N)
    • Weight
      • Weight= Mass x Gravitational field strength
        • Weight (N)
        • Gravitational field strength (N/kg)
    • Terminal velocity
      • Top speed reached when there is no resultant force


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