Across
- 1. The rate at which velocity changes
- 3. 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.
- 6. Force = mass x acceleration (Newtons)
- 8. is a group of related things or parts that work together as a whole
- 9. friction that occurs when one solid surface slides over another
- 12. the tendency of an object to resist any change in its motion
- 14. A push or pull
- 15. The combination of all forces acting on an object
- 16. final velocity-initial velocity/time
- 18. Force equals mass times acceleration
- 21. A place or object used for comparison to determine if an object is in motion
- 22. an object's change in position relative to a reference point
Down
- 2. the total momentum of a system of objects does not change, as long as no outside forces are acting on that system
- 4. A measure of the force of gravity on an object
- 5. the amount of matter in an object
- 7. friction that occurs when an object rolls over a surface
- 10. Friction that acts on objects that are not moving
- 11. 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.
- 13. A force of attraction between objects that is due to their masses.
- 17. A quantity that has both size and direction.
- 19. Force equals mass times acceleration
- 20. speed in a given direction