physics keywords AS

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Across
  1. 3. rate of flow of charge
  2. 6. ...interference when two waves out of phase overlap and total displacement decreases
  3. 9. ...wave doesn't transfer energy
  4. 10. waves spread out after passing through a gap
  5. 13. quantity with only magnitude, no direction
  6. 14. waves bounce off a surface
  7. 19. work done per second
  8. 24. only momentum conserved KE transferred
  9. 25. number of complete oscillations per second
  10. 27. upthrust equal to weight of fluid it displaces
  11. 28. single force to replace all forces
  12. 31. wave changes speed after a change in density, causing it to bend
  13. 33. how much one wave lags behind the other
  14. 34. packet of light energy
  15. 36. splits emf from a power source
  16. 37. cause of material being deformed
  17. 38. force x distance moved in direction of force
  18. 40. ...wave oscillates parallel to the direction of propagation
  19. 41. fraction of original length material extends
  20. 42. minimum energy needed for an electron to leave the surface of a metal
  21. 43. ...wave oscillates perpendicular to the direction of propagation
Down
  1. 1. distance between two consecutive points
  2. 2. total moment of a couple
  3. 4. quantity with magnitude and direction
  4. 5. for a system in eq, clockwise moments equal anticlockwise
  5. 7. returns to original length when released
  6. 8. extension of an elastic object is dp to the force applied
  7. 11. minimum frequency for an electron to be released
  8. 12. energy transferred from electrical into other forms per unit charge
  9. 15. doesn't return to original length when released
  10. 16. two equal and anti parallel forces that cause rotation
  11. 17. when two waves superpose and there is a change in overall displacement
  12. 18. momentum and KE are conserved
  13. 20. dist travelled between seeing hazard and applying brakes
  14. 21. ...interference where two waves overlap and total displacement increases
  15. 22. td plus bd
  16. 23. max distance from its undisturbed point
  17. 26. how difficult a material is to deform
  18. 29. how stiff a spring is
  19. 30. dist travelled between applying brakes and stopping
  20. 32. force energy transferred from other forms into electrical per unit charge
  21. 35. distance from its undisturbed position
  22. 36. ...wave transfers energy
  23. 39. time of one complete oscillation