Science vocab

3. states that if the net force acting on an object is zero, the motion of the object doesn't change
5. the forces two objects apply to each other.
9. motion in which an object is moving along a curved path.
12. a force that one object applies to another without touching it.
13. a force that acts perpendicular to the direction of motion, towards the center of the curve.
14. states that for every action there is an equal and opposite reaction.
16. a contact force that resists the sliding motion of two surfaces that are touching
17. a push or a pull on an object.
19. a measure of how hard it is to stop a moving object.

1. the amount of matter in an object
2. a push or pull on an object by another that is touching it.
4. states that the acceleration of an object is equal to the net force exerted on the object divided by the object's mass.
6. forces acting on an object that combine and form a net force of zero.
7. states that the total momentum of a group of objects stays the same unless they are acted upon by outside forces
8. a force that exists between all objects that have mass
10. forces acting on an object that combine and form a net force that isn't zero
11. the tendency of an object to resist a change in motion.
15. the gravitational force exerted on an object
18. the combination of all the forces acting on an object.