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7
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If the net force on an object is zero, the motion of the object does not change.
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8
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Overall force acting on an object when forces are combined
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9
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is a change in velocity. (speeding up, slowing down, changing direction)
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10
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a push or pull on an object without touching it
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11
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produces a net force that is not zero; changes the object's motion.
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12
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the motion of an object when gravity is the only force acting on the object.
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14
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the friction experienced by objects falling through the air
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15
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a push or pull on an object by another that is touching it.
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17
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the force a magnet exerts on another magnet and iron, cobalt or nickel.
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18
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For every action there is an equal and opposite reaction
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19
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produces a net force that is zero; does not change the object's motion.
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