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Physics Chapter 4 vocab

Terms in this set (11)

force
A push or pull on an object that causes a change in motion
free-body diagram
A physical model that represents forces
net force
The sum of all the forces on an object
Newton's second law
States that the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object.
Newton's first law
States that an object at rest will remain at rest, and an object at motion will stay at motion.
inertia
The tendency of an object to resist change.
equilibrium
The condition in which the net force on an object is zero.
apparent weight
The force experienced by an object.
weightlessness
Weight of zero that results when there are no forces pushing up on the object
Newton's third law
All forces come in pairs and that the two forces in a pair act on different objects
tension
The force exerted by a rope or a string
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