5th physics revision

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Across
  1. 4. wave interference creates a larger wave
  2. 7. mass x velocity
  3. 9. energy due to motion
  4. 11. unit of power
  5. 14. mass x gravity
  6. 15. what harmonics does pipe open one end produce?
  7. 16. when do storage heaters heat up?
  8. 17. speed x time
  9. 18. how we receive heat from the sun
  10. 19. waves travel perpendicular to direction of vibration
  11. 21. how many laws of motion?
  12. 23. provides the air for the Linear Air Track
  13. 24. in uvast which velocity is v?
  14. 26. the incident & reflected ray & the........lie in same plane
  15. 28. passes through the photogate
  16. 31. who said pv=k at constant temperature
  17. 32. frequency of musical note determines ...
  18. 33. unit of energy
  19. 34. both magnitude and direction
  20. 36. mass / volume
  21. 38. v=u+...
  22. 40. waves vibrating in same direction
  23. 41. singer shattering glass is an example of ...
  24. 42. two parallel forces with same magnitude and opposite direction
  25. 44. unit of force
  26. 45. every lever has one
Down
  1. 1. pressure in a liquid ........... with depth
  2. 2. distance in a particular direction
  3. 3. amplitude of musical note determines ...
  4. 5. physical property changes measurably with temperature
  5. 6. what kind of wave is sound?
  6. 8. unit of mass
  7. 10. force / area
  8. 12. energy to change state without change temperature
  9. 13. spreading out of wave as it passes a gap
  10. 20. magnitude but no direction
  11. 22. bouncing of a wave off an obstacle
  12. 25. rate of change velocity with respect time
  13. 27. movement of heat in a fluid
  14. 29. Potential Energy =
  15. 30. what kind of mirror can produce real & virtual images?
  16. 35. the unit of time
  17. 37. used to measure temperature
  18. 39. standard unit of temperature
  19. 43. Hertz (Hz) is the unit of ...