physics chapter 6

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