Physics Review

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Across
  1. 2. A push or pull
  2. 7. An object with a lot of this tends to keep doing what it's doing
  3. 10. A force that acts against the direction of motion
  4. 11. An object has a _______ velocity when moving away from the motion detector
  5. 12. The force of a surface pushing up on an object
  6. 14. Change in momentum
  7. 16. When weight and the force of air resistance are balanced
  8. 19. The speed of a zero at the top of its path when thrown upward
  9. 20. The action of an object moving back when something is thrown forward
  10. 21. A unit for mass
  11. 22. A unit for force
  12. 23. Newton's _______ law says that objects keep moving at a constant velocity or stay at rest unless there is a net force
  13. 24. An object has a ________ velocity when moving toward the motion detector
  14. 25. The law of _________ of momentum says that the total momentum before and after a crash is the same
  15. 27. A collision in which objects bounce and don't break
  16. 29. If the stopping ______ is more, then the stopping force is less
Down
  1. 1. The force of gravity on an object
  2. 3. This is lost in an inelastic collision(through sound or heat)
  3. 4. Where Ms. K will be in February
  4. 5. The amount of matter that makes up an object
  5. 6. A measure of how hard it is to stop an object
  6. 8. Newton's _____ law says that forces are always equal (but opposite direction) when objects collide.
  7. 9. How quickly velocity changes
  8. 10. When an object is falling and weight is the only force
  9. 13. A ________ diagram is a picture showing all of the forces on an object
  10. 15. This increases when an object moves more quickly
  11. 17. A collision in which objects stick together
  12. 18. Speed with direction
  13. 22. The total force on an object
  14. 26. Newton's _______ law says that acceleration depends on force and mass
  15. 28. Can be measured in m/s or mph