Force, Motion, and Mass

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Across
  1. 3. a rigid bar on a fixed point, or pivot.
  2. 6. a modified inclined plane used to seperate or join things together
  3. 7. An object used to make work easier.
  4. 10. The unit of measure for work.
  5. 11. How many simple machines are there?
  6. 14. the unit of measure for weight
  7. 15. the mechanical advantage without friction
  8. 16. A push or pull.
  9. 18. the rate of change of velocity per unit of time.
  10. 19. everything is made up of ___.
  11. 20. A simple machine that consists of a large wheel secured to a smaller wheel or shaft
  12. 22. Efficiency is expressed as a ___.
  13. 25. newton's first law; whatever is in motion stays in motion until it is acted upon by an outside force.
Down
  1. 1. the amount of times a force is exerted over a distance
  2. 2. the amount of matter in an object
  3. 4. No matter where you are, mass ___ changes, while weight does.
  4. 5. the rate of change of displacement (speed with direction)
  5. 8. an even sloping surface
  6. 9. force equals mass times ___.
  7. 12. the amount of gravity is acting on an object
  8. 13. the unit of measure for mass
  9. 16. most of the output force is lost due to ___.
  10. 17. physicist who discovered gravity; 3 laws of motion
  11. 20. Using force to move an object a distance.
  12. 21. A modified inclined plane wrapped around a cylinder.
  13. 22. The rate at which work is done.
  14. 23. the rate at which an object covers a distance
  15. 24. all things fall to the earth because of ___.