GCSE Physics-motion

GCSE Physics-motion

1. Distance Time Graphs

   • The gradient of a distance time graph for an object represents the object's speed
     • The steeper the gradient of the line on a graph, the greater the speed is
     • An object moving at a constant speed travels the same distance every second.
   • A Stationary object is a horizontal line
   • Moving at constant speed is a straight line that slopes upwards

2. Velocity

   • Velocity is speed in a given direction
   • Acceleration is CHANGE of velocity per second.
     • The unit of acceleration is metre per second squared
     • Acceleration= change of velocity/ time taken
       • Acceleration Equation: a= v-u / t
         • v=the final velocity in metres per second
         • u=the initial velocity in metres per second
         • t= time taken in seconds