Mr. Lewis Vocab 4

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Across
  1. 2. A lens or mirror that bends outwards
  2. 3. An observed change in the frequency of a wave when the source or observer is moving.
  3. 5. loss in the density of something,
  4. 6. air or gas
  5. 8. A change in direction of a wave when a wave finds an obstacle or an edge, such as an opening
  6. 12. describes matter that creates light but does not transmit an image.
  7. 15. The Si unit of frequency = one cycle per second
  8. 16. A mirror or lens that bends in
  9. 19. The am
  10. 20. decrease in volume of any object or substance resulting from applied stress.
  11. 22. the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
  12. 23. The bending of a wave as the wave passes between two substances in which the speed of a wave differs
  13. 24. A measure of how high or low a sound is perceived to be to be, depending on the frequency of the wave.
  14. 25. Maximum height of a Sound Wave.
  15. 26. Lowest point on a Sound Wave
  16. 27. a wave in which the particles of the medium vibrate parallel to the direction of wave motion
  17. 28. of two or more waves that results in a single wave
Down
  1. 1. the com
  2. 4. describes an object that is not transparent or translucent
  3. 7. The Maximum distance that the particles of a wave's medium vibrate from their rest position.
  4. 9. a phenomenon that occurs when two objects naturally vibrate at the same frequency; the sound produced by one object causes the other object to vibrate
  5. 10. The distance from any point on a wave to an identical point on the next wave.
  6. 11. The most common unit to measure loudness.
  7. 13. describes matter that allows light to pass through with little interference
  8. 14. a physical environment in which phenomena occurs
  9. 17. a wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
  10. 18. the process of using reflective sound waves to find objects.
  11. 21. of waves produced in a given amount of time.