Velocity - How fast something is moving in a certain direction.
Speed - Distance travelled in a certain time. Usually in m/s.
Acceleration - How quickly the velocity is changing. This change in velocity can be a change in speed or a change in direction or both.
Weight - Force on an object due to the force of gravity on a planet.
Mass - Amount of matter in an object. Measured in kilograms (Kg).
Resultant Force - Single force that would have the same overall effect of all the forces on an object combined.
Force - Push or pull that changes the way an object is moving, or its shape. Measured in newtons (N).
Terminal Velocity - Maximum velocity of an object when the forces on it are balanced. Usually applied to objects falling under gravity.
Stopping Distance - Sum of thinking distance and breaking distance.
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