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3
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a push or pull on an object
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5
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an object's acceleration is in the same direction as the net force on the object
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6
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the force that opposes the sliding motion of two surfaces that are touching each other
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7
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for evey action there is an equal and opposite reaction
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9
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friction like force that opposes the motion of objects moving through the air
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10
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object that is only being acted upon by gravity
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11
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the sume of all of the forces acting on an object
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13
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an object moves at a constant velocity unless an unbalanced force acts on it
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