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12 Cards in this Set
- Front
- Back
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push or pull
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force
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forces that cancel each other out because they are equal and acting in opposite directions.
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unbalanced force
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force that resists motion between two touching surfaces.
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friction
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pull that all objects with mass exert on other matter.
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gravity
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measures an object's tendency to resist changing its motion and depends on the amount of mass an object has.
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inertia
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measures the direction and distance between the end position and starting position.
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displacement
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the direction and distance between the final position and the starting position
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displacement
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speed in a particular direction; can change as an object moves along
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velocity
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a change in velocity divided by the amount of time over which the change occurs.
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acceleration
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an object will remain at rest or will keep moving in a straight line with constant speed unless an outside force acts on it.
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first law of motion
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a net force acting on an object causes the object to accelerate in the direction of the force.
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second law of motion
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when a force is applied on an object, an equal force is applied by the object in the opposite direction.
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third law of motion
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