Newton's First Law - a body continues in a state of rest or uniform velocity unless acted upon by an external force, Newton's Second Law - Force = Mass x Acceleration, Newton's Third Law - for every action, there is an equal and opposite reaction, Acceleration - measured in m/s2 and is the rate of change in velocity, Weight - the gravitational force exerted on an object, measured in Newtons, Vertical force - weight, reaction force and gravity, Horizontal force - friction and air resistance, Inertia - the resistance of an object has to a change in its state of motion, Impulse - the time it takes for a force to be applied to an object or body, Scalar quantity - quantities that have size or magnitude, Vector quantity - quantities that have size and direction, A factor affecting stability - position of the line of gravity,

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