8 13-2 Balanced and Unbalanced Forces opp in direction and equal in size-no change in motion-keeps an object moving at constant velocity
9 *Unbalanced force:not opp and equal-always cause a change in motion
10 3 laws of motion explain rest, constant motion, and accelerated motion 13-3 Force and Motion3 laws of motion explain rest, constant motion, and accelerated motion(Isaac Newton)
11 -1st Law of Motion *Inertia: tendency of objects to remain in motion or stay at rest-object at rest will remain at rest, and an object in motion will remain in motion, unless acted on by an unbalanced force(ex’s)
12 -2nd Law of MotionForce = (mass)(acceleration)N = (kg) (m/s/s)-unbalanced force accel an object in the direction of that force- 1N = 1kg X 1 m/s/s
13 -3Rd Law of Motion*every action, there is an equal and opposite rxn-all forces come in pairs**Scooter Example**
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