Chapter 15, 16, 18 Vocabulary Crossword Puzzle

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Across
  1. 2. transfer of energy by a wave to the medium through which it travels
  2. 9. rapid back-and-forth motion that can occur in solids, liquids, or gases
  3. 10. passage of light through an object
  4. 12. reflected sound wave
  5. 14. describes a material through which light does not pass
  6. 15. bouncing of a wave off a surface
  7. 16. the study of how sound interacts with structures
  8. 19. type of cell in the retina of the eye that responds to colors
  9. 20. figure, picture, or representation of an object
Down
  1. 1. system that uses the reflection of sound waves to find underwater objects
  2. 3. wave changes direction, because its speed changes
  3. 4. material in which a mechanical wave travels
  4. 5. optical device that forms magnified images of very small, close objects
  5. 6. is thicker in the middle than at the edges
  6. 7. perception of how high or low a sound seems
  7. 8. electromagnetic radiation that you can see
  8. 11. number of wavelengths that pass by a point each second
  9. 13. a longitudinal wave that can only travel through matter
  10. 17. highest point on a transverse wave
  11. 18. ability to cause change