DISTANCE: Total path length , SI unit = meter, DISPLACEMENT: shortest path that connects the two location., SI unit = m, SPEED: Rate of change of distance, distance/time, SI unit = m/s, AVERAGE SPEED: Rate of change of total distance travelled., total distance/total time, SI unit = ms-1, VELOCITY: Rate of change of displacment., displacement/time, SI unit = m/s or m s-1, ACCELERATION: Rate of change of velocity., (final velocity - initial velocity)/time taken, SI unit = m/s2 or ms-2,

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