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MOTION (NEWTON'S LAWS OF MATTER (All objects, when resting, will…
MOTION
NEWTON'S LAWS OF MATTER
All objects, when resting, will continue to rest, unless acted upon by an outside force (also true on the moon)
All objects, while in motion, will stay in motion unless acted upon by an outside force (also true on the moon)
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When a force is exerted from an object onto another object, the second object exerts an equal and opposite force
FRAME OF REFERENCE
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Example 1: A train passes you a 1/4 mile away. You see a pole next to it. Since the train and pole are moving relative to one another, and you know the pole is not moving, you know that the train must be moving.
Example 2: A person standing on the sidewalk could see a bus move as it passed them. A person inside the bus might not be able to tell if the bus was moving, especially if they did not look out the window and if the ride was smooth
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INERTIA
Definition: the property of matter by which an object continues in its direction and speed of motion unless it is changed by an external force
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