Across
- 2. a push or pull on one object by another that is touching it
- 4. always acure in pairs
- 6. is speed in a given direction
- 8. objects with more mass require more force to accelerate them
- 9. one motion or constant motion; they are equal forces
- 11. is a force that resists the motion of two surfaces that are touching
- 13. Forces always exist in pairs; when one object exerts a force on another, the other exerts an equal force back
Down
- 1. the change in velocity over a period of time
- 3. "law of inertia"; objects will stay at rest or in motion unless a force is acting on it
- 5. in the same direction or in the opposite direction; unequal equal forces
- 7. a push or pull on an object
- 10. a force that one object applies to another object without touching it
- 12. distance traveled per amount of time