motion vocab

3. Equal in size and opposite in direction
4. The force that attracts a body toward the center of the earth, or toward any other physical body having mass
7. The rate of change of velocity per unit of time
9. A vector whose length is the shortest distance from the initial to the final position of a point P undergoing motion
11. The quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied
13. How much ground an object has covered
16. A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force

1. One force is greater than another, the forces are not balanced
2. An object is said to be at rest if it does not change its position with respect to its surroundings with time
5. A push or pull
6. The time rate at which an object is moving along a path
8. A body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force
10. Not moving; not appearing to move; stable; fixed
12. The time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it
14. The force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other
15. When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction