Vocabulary Unit 2

2. The push or pull on an object with mass causes it to change its velocity.
4. Any motion of a body where gravity is the only force acting upon it.
8. A measurement of mass in motion.
9. the friction between layers of a viscous fluid that are moving relative to each other.
12. A point or object from which the entity in question is moving.
13. Measures the length between objects or points without regard for direction.
15. Newton's 1st law of motion.
17. The change of position of an object.
20. The rate of change of position of an object in any direction.
22. Quantity that designates how fast and in what direction a point is moving.
23. A force that keeps an object at rest.
24. A force that attracts any two objects with mass.
25. Newton's 3rd law of motion.

1. quantities that are described only by a magnitude. Do not have a direction of action.
3. The resistance that one surface or object encounters when moving over or through another material.
5. An abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points.
6. Newton's 2nd law of motion.
7. The rate of change of velocity.
10. Any quantity that has a magnitude and direction, such as displacement or velocity.
11. The force resisting the motion of a rolling body on a surface.
14. The resistance created by any two objects when sliding against each other.
16. the force exerted on a body by gravity.
18. The sum of all forces acting on an object in a single plane.
19. A unit of measurement that describes the amount of matter that makes up an object.
21. The change in position of an object with respect to its surroundings in a given interval of time.