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## Ignore words

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Deceleration
A change in speed, change in direction, or both; in a negative way, slowing down
intertia
resistance of an object to a change in it's motion
acceleration
(physics) a rate of change of velocity
balanced force
Equal forces acting on an object in opposite directions
weight
A force that comes from gravity pulling down on any object with mass
force
(interactions between two objects)
friction
a contact force; type of force between two touching surfaces
gravity
(physics) the force of attraction between all masses in the universe
reaction
A response to a stimulus.
Newton's 1st Law
(Law of Inertia) an object in motion tends to stay in motion & an object at rest stays at rest unless acted upon by an outside force.
Newton's 2nd Law
A force on an object causes an object to accelerate in the same direction as the force
Newton's 3rd Law
A measure of the motion of a body equal to the product of its mass and velocity., For every action there is an equal and opposite reaction
direct relationship
a relationship in which one variable increases with an increase in another variable
inverse realtionship
when one variable increases the other decreases and vice versa
F = a x m
force (formula) shows relationship between force, acceleration and mass
A = F/M
equation for acceleration shows relationship between force, acceleration and mass
M = a/f
shows relationship between force, acceleration and mass
resistance
a force upon an object that slows down motion
Speed
Units: cm/s, m/s, mi/hr, km/s ...
action
the force one object applies to another