force - a push or a pull, motion - movement, friction - when 1 object pushes against another object. Also, a force that works against motion., gravity - a force that pulls 2 objects towards each other, position - change in location, What direction is a push? What direction is a pull? - A push moves away. A pull moves towards something., Newton's 1st Law - Inertia: Things in motion stay in motion and things at rest stay at rest., Newton's 2nd law - Acceleration: When an unbalanced force hits an object, the object can either go slower or faster., Newton's 3rd law - Reaction: For every force, there is an equal and opposite reaction., What causes things more or less friction? - Rough surfaces have more friction than a smooth surface. The speed will be slow. A smooth surface has less friction. The speed will be faster.,

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