Across
- 3. Speed in a given direction
- 6. A quantity that has both size and direction.
- 11. Force formula and unit
- 14. friction that occurs when one solid surface slides over another
- 15. friction that occurs when an object rolls over a surface
- 17. the rate at which someone or something is able to move or operate.
- 18. An object's change in position relative to a reference point.
- 19. The combination of all forces acting on an object
- 20. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Down
- 1. The rate at which velocity changes
- 2. Friction that acts on objects that are not moving
- 4. A push or a pull
- 5. the amount of matter in an object
- 7. the tendency of an object to resist any change in its motion
- 8. A force of attraction between objects that is due to their masses.
- 9. Force equals mass times acceleration
- 10. force The electromagnetic force is the force that causes an attraction between electrons and the positive nucleus. All forces between atoms are caused by electromagnetic force.
- 12. the total momentum of a system of objects does not change, as long as no outside forces are acting on that system
- 13. A measure of the force of gravity on an object
- 16. For every action there is an equal and opposite reaction