chapter 2 vocab

2. Gravity is an attractive force that exists between all objects that have mass
8. a force that a object pushes another object
11. Circular motion is any motion in which an object is moving along a curved path
12. Law of conservation of momentum totalmomentum of a group of objects stays the same unless otide forces act on an objects
14. When one object experts a force on a second object
16. Momentum is a mesure of how hard it is stop a moving object
17. A force that acts perpendicular to the direction of motion towards the center of the curve
18. Friction is a force that resists the motion of two surface that are touching

1. force Forces acting on an object that combine and form a net force of zero
3. a force where there isnt contact
4. The tendency of an object to resist a change in its motion
5. The acceleration of an object is equal to the net force acting on the object divided by the objects mass
6. If the net force on an object is zero the motion of the object doesnt change
7. Weight is the gravitational force exerted on an object
9. The combination of all the forces acting on an object is the net force
10. a push or pull of an object is a force
13. Mass is the amount of matter in an object
15. A force pair is the forces two objects apply to each other