CROSSWORD 5

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Across
  1. 3. Rate of doing work
  2. 5. Number of vibrations per second is called __.
  3. 6. Speed = Frequency x __.
  4. 8. SI unit of loudness is __.
  5. 9. SI unit of power
  6. 10. Water stored in dam has __ potential energy.
Down
  1. 1. SI unit of work
  2. 2. Sound needs a __ to travel.
  3. 4. Capacity to do work
  4. 7. Sound is produced due to __ of bodies.