Friction & Momentum

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Across
  1. 2. momentum has a ______ relationship with mass and velocity
  2. 5. momentum is highly related to ________ Laws of Motion
  3. 6. an __________ force will change an object's momentum
  4. 8. the amount of matter in an object
  5. 10. the momentum _____ by one object is transferred to another
  6. 11. how hard two surfaces push against each other; affects friction
  7. 14. the slowing force between two objects that touch; works in opposite direction
  8. 16. the friction in a motionless object
  9. 18. gravitational _____ ____ is based on an object's distance from the surface of Earth
  10. 19. the two ______ that affect momentum are mass and velocity
  11. 20. displacement per unit of time
  12. 22. when two objects crash into one another
  13. 23. objects ____________ to the ground have less GPE
  14. 25. the friction between a solid object and a gas, or a liquid
  15. 27. objects with a _________ mass have more gravitational pull
  16. 29. this type of g-force creates a sense of "heaviness"
  17. 30. the unit for mass
Down
  1. 1. momentum is a _______ quantity because it has a number and a direction
  2. 3. the friction between a flat surface and a circular object
  3. 4. one of the factors that affects gravity
  4. 7. the _________ due to gravity is 9.8 m/s2
  5. 9. the friction between one object moving over another
  6. 12. a quantity that does NOT have a direction
  7. 13. describes the type of surface that affects friction - smooth, rough, etc.
  8. 15. this type of g-force creates a sense of "weightlessness"
  9. 17. property of matter to resist changes in motion; only depends on mass
  10. 21. the Law of _______ of Momentum says total momentum stays the same
  11. 24. the pull of gravity on an object's mass
  12. 26. the attractive force between any two objects with mass
  13. 28. "mass in motion'; objects want to keep going in same direction and speed