vocab

4. A push or pull that can change the motion of an object.
5. Law of Action-Reaction, Newton’s law stating that for every action force there
6. Force, The sum of all the forces acting on an object.
9. second law of motion.
10. of Reference, A system that uses coordinates or background objects to establish position or to measure movement of a point in space.
12. decreasing speed, or a change in direction.
13. A change in motion caused by an unbalanced force acting on an object; includes increasing
14. an equal and opposite reaction force; often referred to as Newton’s third law of motion.
15. Forces, Forces on an object that cause change in the motion of the object.

1. on the object's mass and the magnitude of the force acting upon it (F = ma); often referred to as
2. A force that resists the motion of two surfaces sliding across one another.
3. Law of Inertia, Newton’s law stating that an object at rest stays at rest or an object in motion stays in motion until unbalanced forces act upon it; often referred to as Newton's first law of motion.
6. Law of Force and Acceleration, Newton’s law stating that acceleration of an object
7. Forces, Forces on an object that do not change the motion of the object.
8. The tendency of a physical object to remain still or continue moving unless force is applied.
11. Measurement of speed and direction of an object.