Science

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Across
  1. 1. The abrupt change in the wave's propagation direction after striking the interphase of the two distinct mediums.
  2. 2. Block light from traveling through them
  3. 4. The maximum value of upward displacement within a cycle.
  4. 6. A wave vibrating at right angles to the direction of its propagation.
  5. 7. A vibration that propagates as an acoustic wave
  6. 9. A wave vibrating in the direction of propagation.
  7. 10. A substance that makes possible the transfer of energy from one location to another, especially through waves
  8. 11. Electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye
  9. 12. The distance between successive crests of a wave.
Down
  1. 1. The change in direction of a wave passing from one medium to another caused by its change in speed
  2. 3. semitransparent.
  3. 5. The lowest point on a wave.
  4. 8. The extent or range of a quality.