Vocabulary

1. in circular motion, force that acts perpendicular to the direction of the motion,toward the center of the curve
5. a push or a pull on one object by another object without touching it
8. forces acting on an object that combine and forms a net force of zero
11. law states that the acceleration of an object is equal to the net force exerted on the object divided by the objects
13. any motion in which an object is moving along a curved path
14. the gravitational force exerted on an object
15. the amount of matter in an object

2. law states that if the net force acting on an object is zero, the motion of the object does not change
3. a contact force that resists the sliding motion of two surfaces that are touch the comination of all the forces acting on an object
4. a force that one object applies to another object without touching it
6. law that states that for every action there is an equal and opposite reaction
7. a push or pull on an object
9. the forces two objects apply to each other
10. an atteractive force that exists between all objects that have mass
12. a measure of how hard it is to stop a moving object