Sound and Light Energy

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Across
  1. 2. the number of crests or compressions in a wave that pass a point per unit time.
  2. 6. the amount of electricity, light, heat, or sound energy per unit area per unit time.
  3. 7. the distance a wave travels (crest, trough, crest) in a given period of time. Wavelength x frequency.
  4. 8. the height of the crest in a transverse wave; a measure of how compressed the compressions are in a longitudinal wave.
  5. 11. the distance between two crests OR two troughs in a transverse wave or between two compressions in a longitudinal wave
  6. 12. the high point of a transverse wave
  7. 14. the low point of a transverse the wave
  8. 15. a wave that causes a medium to vibrate in a direction parallel to the direction in which the wave travels; sound waves are longitudinal
  9. 16. a disturbance that travels through a medium from one place to another.
  10. 17. the time required to complete one cycle of a wave; from one crest to the next crest (or one trough to the next trough
  11. 18. transfer of energy without a transfer of material.
Down
  1. 1. a wave that causes a medium to vibrate in a direction perpendicular to the direction in which the wave travels; light waves are transverse.
  2. 3. area of a longitudinal wave where the particles of the medium have the highest density
  3. 4. a measurement used to compare the intensity of different sounds; each increase of 10 decibels is a sound intensity 10 times greater.
  4. 5. to move back and forth
  5. 9. how high or low a sound is
  6. 10. the material through which a mechanical wave travels.
  7. 13. the spreading out of energy as it travels away from the source of the energy; the decrease in intensity as distance from an energy source increases.