CROSSWORD PUZZLE

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Across
  1. 1. the amount of matter
  2. 4. force applied in one direction is greater than the force applied in the opposite direction
  3. 6. The transfer of energy
  4. 10. the universal force of attraction acting between all matter
  5. 12. a push or a pull
  6. 16. stored energy
  7. 17. A quantity that is unknown but assumed to have a fixed value
  8. 18. the rate at which an object changes its velocity
  9. 19. the unit of work or energy
  10. 20. Forces that are opposite in direction and equal in size
Down
  1. 2. The time rate at which an object is moving along a path
  2. 3. A tendency to do nothing or to remain unchanged
  3. 5. unit of force
  4. 7. Refers to something measured vertically whether high or low
  5. 8. energy of motion
  6. 9. basic unit of mass in the metric system
  7. 11. a change in the position of an object with reference to time
  8. 13. ability to do work
  9. 14. a stopping force
  10. 15. the sum of all the forces acting on an object