Physics Review

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