Chapter 2 Vocab

2. The amount of matter in an object
3. Forces acting on an object that combine and form a net force of zero
6. A push or pull of an object to another object.
9. Law that states that for every action there is an equal and opposite reaction
11. an attractive force that exists between all objects that have mass
14. The tendency of an object to resist a change in its motion
15. The forces two objects apply to each other
16. The combination of all the forces acting on an object
17. Law that states that if the net force acting on an object is zero the motion of the object does not change
18. Law that states that acceleration of an object is equal to the net force exerted on the object divided by the object's mass

1. A principal stating that the total momentum of a group of objects stays the same unless outside forces act on the objects
4. Any motion in which an object is moving along a curved path
5. force that one object applies to another object without touching it
7. In a circular motion, a force that acts perpendicular to the direction of motion toward the cent of the curve
8. The gravitational force exerted on an object
10. A push or pull of an object.
12. A contact force that resists the sliding motion of two surfaces that are touching
13. A measure of how hard it is to stop a moving object