Across
- 3. the force of attraction between all masses in the universe
- 9. a force that acts on a body moving in a circular path and is directed toward the center around which the body is moving
- 10. A push or pull exerted on an object
- 13. the force or speed with which something moves
- 16. Fluid friction acting on an object moving through the air
- 18. occurs when two solid surfaces slide over each other
- 19. Change in velocity divided by the time it takes for the change to occur
Down
- 1. Force equals mass times acceleration
- 2. Forces that produce a nonzero net force, which changes an object's motion
- 4. The tendency of an object to resist a change in motion
- 5. The sum of all forces acting on an object
- 6. The greatest velocity a falling object can achieve
- 7. friction that occurs as an object moves through a fluid
- 8. equal forces acting on an object that combine and form a net force of zero
- 11. Friction that acts on objects that are not moving
- 12. friction that occurs when an object rolls over a surface
- 14. For every action force there is an equal and opposite reaction force
- 15. A measure of the amount of matter in an object
- 17. an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force