Sound Waves crossword

1234567891011121314
Across
  1. 4. of or relating to the interrelation of electric currents
  2. 6. operating by or producing electricity
  3. 8. he quality of a sound governed by the rate of vibrations
  4. 9. vibrations that travel through the air or another medium
  5. 10. the process by which a beam of light or other system
  6. 11. the strength and vitality required for sustained
  7. 12. the distance between
Down
  1. 1. transport
  2. 2. transverse
  3. 3. an instrument for converting sound waves into electrical energy
  4. 5. diminution in the density of something,
  5. 7. talk back
  6. 13. move or cause to move continuously and rapidly
  7. 14. the natural agent that stimulates sight and makes