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Forces and Newton's Laws of Motion
Terms in this set (14)
a push or pull on an object
sum of all forces acting on an object; determines change in motion of an object.
forces on an object cancel each other out causing no change in object's motion.
net force is not zero; causes change in motion
Newton's First Law of Motion
an object at rest will stay at rest; an object in motion will remain in motion at constant velocity unless acted upon by an unbalanced force.
force that occurs between two surfaces in direct contact and opposes motion.
force between two surfaces in contact. Keeps resting objects at rest.
Newton's Second Law of Motion
Force = Mass x Acceleration
Force that exists between all object in the universe; depends on mass of the objects and the distance between them.
a measure of the amount of gravity on an object.
force that pulls toward the center when traveling in a circular path.
frictional force air exerts on a moving object; acts opposite in direction to the object's motion
Newton's Third Law of Motion
for every action there is an equal and opposite reaction
Continuously fall toward Earth, but because the earth is curved they travel around it; fall exactly matches curve of Earth.
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