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Newton's Laws

8th Grade Unit 7

TermDefinition
Motion Change of position or orientation of an object over time
Acceleration The rate of change of the velocity (increase or decrease)
Newton's Third Law of Motion For every action, there is an equal and opposite reaction
Newton's First Law of Motion unless a body (such as a rubber ball, car, or planet) is acted upon by some force, a body in motion tends to remain in motion and a body at rest tends to remain at rest. This postulate is known as the law of inertia.
Reaction Force The force that acts in opposite of the action force
Simultaneously At the same time
Inertia The tendency of an object in motion to stay in motion or an object at rest to stay at rest unless acted upon by a force
Balanced a set of forces acting upon an object such as to not affect its motion the net force is zero
Unbalanced Forces are not equal and opposite, that results in a non zero net force
Action Force A force applied to an object
Force Push or pull on an object
Newton's Second Law of Motion when a force acts on an object, it will cause the object to accelerate. The larger the object's mass, the greater the force will need to be to cause it to accelerate. This Law may be written as force = mass x acceleration or: F = m * a
Created by: klstorie
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