Newtons laws

4. tendency of an object to resist a change in its motion
5. An attractive force that exists between all objects that have mass.
6. A push or a pull on one object by another that is touching
9. The amount of matter in an object
10. A combination of all the forces acting on an object
11. When one object exerts a force on a second object the second object exerts an equal force in the opposite direction on the first object
12. The total momentum of a group of objects stays the same unless outside forces act on the object
16. Any motion in which an object is moving along a curved path
17. The forces two objects apply to each other
18. The gravitational force exerted on an object

1. If the net force on an object is zero, the motion of the object does not change
2. In circular motion a force that acts perpendicular to the direction of motion toward the center of the curve
3. Forces acting on an object that combine and form a net force of zero
7. The acceleration of an object is equal to the net force acting on the object divided by the objects mass
8. A measure of how hard it is to stop a moving object
13. A force that one object can apply to another without touching it
14. A force that resists the motion of two surfaces that are touching
15. A push or a pull on an object