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8.6A 8.6B 8.6C

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Term
Definition
Acceleration   change in speed and / or direction of an object’s motion  
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Balanced force   equal and opposite forces on an object that result in no change in position, direction, or motion; net force equals zero  
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Friction   the force that one surface exerts on another when the two surfaces rub together  
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Inertia   tendency of an object to resist change in motion  
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Law of action-reaction   for every action, there is an equal and opposite reaction  
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Law of force and acceleration   when an object that has a constant mass is acted upon by a force, the object will accelerate in the same direction as the force applied f=ma  
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Law of inertia   the tendency of an object to resist change in motion unless acted upon by a force  
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Net force   measurement of the total forces exerted on an object  
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Speed   distance traveled by an object in a given amount of time  
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Unbalanced force   unequal forces on an object that may result in a change in position, direction or motion; net force does not equal zero  
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Velocity   a measurement of an object's speed and direction  
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Force   push or pull  
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Newton’s First Law of Motion   the tendency of an object to resist change in motion unless acted upon by a force  
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Newton’s Second Law of Motion   when an object that has a constant mass is acted upon by a force, the object will accelerate in the same direction as the force applied f-ma  
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Newton’s Third Law of Motion   for every action, there is an equal and opposite  
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