physics chapter 6

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Across
  1. 6. momentum = _______ × velocity
  2. 8. Forces in real collisions are not ______during the collisions
  3. 10. The quantities and kinematic equations describing one-dimensional motion predict the ________ of the ball before and after the ball is struck.
  4. 11. energy Some kinetic energy is also converted to _______ and internal energy.
  5. 12. the change in momentum of the first object is _______ to and opposite the change in momentum of the second object.
  6. 14. momentum’s SI units are ________ per second (kg • m/s).
  7. 21. True/false In an inelastic collision, the total kinetic energy remains constant when the objects collide and stick together.
  8. 22. In an elastic collision, two objects return to their original shapes and move away from the collision _______.
  9. 24. interval force ×_________= change in momentum
  10. 26. In all interactions between isolated objects, momentum is ________
  11. 28. + m2 m1v1,i + m2v2,i = (______) vf
  12. 29. Perfectly inelastic collisions can be ________ in terms of momentum
  13. 30. In a perfectly inelastic collision, two objects stick together and move as one mass after the ________.
Down
  1. 1. collision ______ a collision in which the total momentum and the total kinetic energy are conserved
  2. 2. Momentum is conserved for objects _______ away from each other
  3. 3. Collisions and other transfers of momentum occur ______ in everyday life
  4. 4. Momentum is conserved but kinetic energy is _____ conserved in a perfectly inelastic collision.
  5. 5. total initial momentum = total ______ momentum
  6. 7. elastic potential energy In an inelastic collision, kinetic energy is converted to ____________ when the objects deform.
  7. 9. ________ the product of the force and the time over which the force acts on an object
  8. 13. inelastic collision _________a collision in which two objects stick together after colliding
  9. 15. ________ is represented by the symbol p.
  10. 16. m1v1,i + m2v2,i = m1v1,f +______
  11. 17. Force is ________ when the time interval of an impact is increased
  12. 18. momentum is a ________quantity, with its direction matching that of the velocity
  13. 19. True or false Most collisions are always elastic or perfectly inelastic
  14. 20. Momentum has ________ mass × length/time
  15. 23. true or false an everyday example of momentum transfers would be a baseball bat hitting a pitch
  16. 25. _________ collisions are elastic or perfectly inelastic.
  17. 27. energy Both momentum and _________ are conserved in an elastic collision.