Forces in Motion Vocab
Motion
change in position
Force
push or pull exerted on an object
Newton (N)
SI unit of force
Balanced Force
equal forces acting on an object in opposite directions
Unbalanced Force
net force that doesn't equal zero, which changes an object's motion
Net Force
the overall force on an object when all the forces acting on an object are added or subtracted together
Speed
distance something travels in a certain amount of time
Velocity
an object's speed and direction at a given instant
Acceleration
the rate that an object changes velocity
Inertia
the tendency of an object to resist change in motion
Newton's 1st Law (Law of Inertia)
states an object in motion will stay in motion unless acted on by an unbalanced force
Newton's 2nd Law (Law of Force and Acceleration)
states than the acceleration of an object is determined by the net force and the object's mass
Newton's 3rd Law (Law of Action/Reaction)
states that for every action there is an equal and opposite reaction
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