Force and Motion Vocabulary

2. Forces that are not equal in size or direction, and cause an object to change its state of motion
6. The measurement of speed and direction
7. The change in an object's position over time relative to a frame of reference
12. Tendency for an object to resist a change in motion/rest
13. How long it takes an object to cover a distance. Speed = distance/time
14. When two or more forces acting on an object are equal in magnitude but opposite in direction, canceling each other out
16. An object at rest stays at rest, and an object in motion stays in motion, unless acted upon by an external force.

1. For every action force, there is an equal and opposite reaction force.
3. The resistance that one surface or object encounters when moving over another
4. The relationship between force, mass, and acceleration
5. Involving physical effort, a push or a pull
8. The sum of all the forces acting on an object
9. Involves an interaction between two or more objects, it causes a push or pull between the objects
10. The amount of matter in an object
11. An invisible force that pulls objects towards each other
15. The rate at which velocity changes with time, including changes in speed, direction, or both.