Waves vocab

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Across
  1. 2. Perpendicular to the direction of energy transfer
  2. 4. the middle line of a wave
  3. 7. how many crests pass by in one second
  4. 9. A substance that can transmit energy
  5. 12. lines that cross at ninety degrees
  6. 13. The top of a wave point
  7. 14. Needs a medium
  8. 15. the decrease in volume
  9. 17. the bottom of a wave point
  10. 18. the distance from the midpoint to the crest
Down
  1. 1. the direction that the waves and particles go
  2. 3. how tight the compression or how squished the parts are
  3. 5. the distance between a compression to the next compression
  4. 6. number of compressions in one second
  5. 8. Oscillating electric and magnetic feilds
  6. 10. the reduction of an item
  7. 11. the distance between crests
  8. 16. lines that never cross