Newton’s Laws of Motion

Newton’s Laws of Motion

Newton’s 1st Law.


States that a body will continue in a state of rest, or in uniform motion in a straight line, unless acted on by an external force, i.e. it has inertia.


Newton’s 2nd Law.


States that a body at rest or in uniform motion will when acted on by an external force accelerate in the direction of the force. The magnitude of the acceleration for any given mass is directly proportional to the size of the force applied, i.e. when a force of 1N is applied to a mass of 1kg it will accelerate at 1m/s2.

Force = mass x acceleration


Newton’s 3rd Law.


States that for every action there is an equal and opposite
reaction.




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