Speed, velocity and acceleration

Question	Answer
Acceleration	The rate of change in speed (or velocity), measured in metres per second squared. Acceleration = change of velocity ÷ time taken.
Deceleration	Slowing down or negative acceleration, eg the car slowed down with a deceleration of 2ms^-2.
Displacement	Quantity describing the distance from the start of the journey to the end in a straight line with a described direction, eg the hiker ended up at the hostel 50km due north of his original position
Force	A push or a pull. The unit of force is the newton (N).
Magnitude	The magnitude tells us the size of the vector.
Momentum	A quantity relating to a moving object that is calculated by multiplying its mass by its velocity.
Stationary	Not moving.
Velocity	The speed of an object in a particular direction.

Resource summary

	Created by Yas Payne almost 11 years ago