5th Sound and Light- Chapter 17 Crossword Review

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Across
  1. 3. gives off light in a narrow beam
  2. 5. the bouncing of heat or light off of an object
  3. 6. the range of the spectrum that people can see
  4. 9. carry only energy and forms an s shape
  5. 11. travel as compressions of matter
  6. 12. absorb the most light
  7. 15. matter that carries sound waves
  8. 17. the units that the volume of a sound is measured in
  9. 20. a back and forth mvoement of matter
  10. 22. the number of vibrations per second
Down
  1. 1. the bending of light as it moves from one material to the other
  2. 2. allowing light to pass through
  3. 4. a lens that is ticker at the center than it is at the edges
  4. 7. pass throug matter more easily
  5. 8. range of energy
  6. 10. a sound that bounces off of a surface
  7. 13. a lens that is thicker at the edges than it is at the center
  8. 14. how high or low a sound is
  9. 16. gives off heat because the current heats up the filament inside the wire
  10. 18. do not compress matter
  11. 19. allowing only some light to pass through
  12. 20. the loudness of a sound
  13. 21. not allowing light to pass through