Chapter 2 Science Vocab

2. Newton's __ Law of Motion; acceleration is equal to the net force exerted on the object divided by the object's mass
4. Combination of all forces acting on an object
6. A direction that you choose from a starting point to describe an object's postion
10. Newton's __ Law of Motion; for every action there is an equal and opposite reation
11. Motion in which an object is moving on a circular path
12. Push or pull on an object
14. Resists the motion of two surfaces touching
15. Forces acting on an object that combine and form a net force that does not equal zero
21. Push or pull on one object by another
22. Tendency of an object to resist change in motion

1. Forces two objects apply to each other
3. Attractive force that exists between all objects that have mass
5. Force that can apply to another object without touching it
7. Newton's __ Law of Motion; motion doesn't change if the net forceof zero
8. A force in circular motion that acts perpendicular to the direction of motion toward the center of the circle
9. Important, momentous
13. Forces acting on an object that combines and form a net force of zero
16. Law of __ of Momentum; total momentum of a group of objects stays the same unless outside forces act on the objects
17. Measure of how hard it is to stop a moving object
18. At rest or having no motion
19. Amount of matter in an object
20. Gravitational force extended on an object