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# ICP - Chapter 3

### Force Vocabulary

TermDefinition
equilibrium The sum of all forces acting on an object is equal to zero
Friction The force that results from motion between objects (sand paper and wood)
Gravity the force that pulls an object to the center of the earth
Inertia the resistance of a body to change its state of motion
Mass The amount of matter an object has
Momentum The mass of an object multiplied by its speed or velocity.
Newton a unit of force; N
Newtons 1st Law states any object at rest will remain at rest unless acted upon by an outside force
Newtons 2nd Law states that the acceleration of an object is directly proportional to the force action on it (F = ma)
Newtons 3rd Law states that whenever one object exerts a force on another, the second object exerts and equal and opposite force on the first.
E = sum of ....
Pounds English system unit of Force
Weight A Force created by gravity
Force Push or Pull on an object
Law of conservation of momentum without an outside force, the momentum before a collision will equal the momentum after the collision
Created by: tanya.babik