newton laws

4. a force that one object applies to another object without touching it
6. the amount of matter in an object
7. the combination of all the forces acting on an object
11. force acting on an object that combines forms a net force of zero
13. law that states that if the net force acting on an object is zero, that motion of the object does not change
15. in a circular motion, a force that acts perpendicular
16. law that states that for every action is an equal and opposite reaction to the direction of motion towards the center of the crust
18. a principle stating that the total momentum of a group of objects stays the same unless outside force acts on the object

1. a measure of how hard it is to stop a moving object
2. that contact force that resists the sliding motion of two surfaces that are touching
3. a push or a pull on one object by another object without touching it
5. any motion in which an object is moving along a curved path
8. the tendency of on object to resist a change in it's motion
9. that gravitational force exerted on an object
10. law that states that the acceleration of an object is equal to the net force exerted on the object divided by the objects mass
12. a push or pull on an object
14. the force two objects applies to each other
17. an attractive force that exists between all objects that have mass