Light and Sound

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 7. The color of snow (5)
  2. 8. Polished surface that forms images by reflecting light (6)
  3. 9. The particular auditory effect produced by a given cause (5)
  4. 10. The change in direction of a propagating wave when passing from one medium to another (10)
  5. 13. The property of sound that varies with variation in the frequency of vibration (5)
  6. 14. State of matter with a fixed shape (5)
  7. 15. A primary subtractive color for light (4)

Down

  1. 1. The number of occurrences within a given time period (9)
  2. 2. The maximum displacement of a periodic wave (9)
  3. 3. Softly bright or radiant (8)
  4. 4. A regular periodic variation in value about a mean (9)
  5. 5. A polyhedron with two congruent and parallel faces and whose lateral faces are parallelograms (5)
  6. 6. The membrane in the ear that vibrates to sound (7)
  7. 7. A movement like that of a sudden occurrence or increase in a specified phenomenon (4)
  8. 11. What lets us see; the opposite of dark (5)
  9. 12. The color of coal (5)