Vocabulary

2. A force that one object applies to another object without touching it
5. Law that states that for every action, there is an equal and opposite reaction
8. The amount of matter in an object
11. a principle stating that the total momentum of a group of objects stays the same unless forces act on the objects
12. A contact force that resists the sliding motion of two surfaces that are touching
14. The gravitational force exerted on an object
15. A push or pull on an object by another object that is touching it
16. Law that states that if the net force acting on an object is zero, the motion of the object doesn't change
17. Forces acting on an object and form a net force of zero

1. The tendency of an object to resist a change in it's motion
3. In circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve
4. Any motion in which an object is moving along a curved path
6. A measure of how hard it is to stop a moving object
7. An attractive force that exists between all objects that have mass
9. A push or pull on an object
10. The forces two objects apply to each other
13. The combination of all the forces acting on an object
18. Law that states that the acceleration of an object is equal to the net force exerted on the object divided by the mass