force , application, levers
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9 Terms
Newton 1st law - Law of inertia
forces causing a moving object to change direction , accelerate or decelerate
Newton’s 2nd law - law of acceleration
The greater the force applied to an object, the greater the acceleration
Formula for force
mass x acceleration
Newton 3rd law - law of action & reaction
For every action there exist an equal and opposite reaction
Force
A push or pull
Gravity
The force that attracts body towards the centre of earth
Muscular force
A push or pull applied to an object provided by muscular contraction
Air resistance
The friction force that air applies against a moving object
Ground reaction
An equal and opposite reaction to the force that the body exerts on the ground