Fiber Optics

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Across
  1. 3. Total Internal Reflection means light bounces along the inside of the cable without _______
  2. 5. A type of kinetic energy that is visible to the human eye, enabling sight
  3. 6. Light inside fiber optics travels at high speeds, making it the ________ way to send internet data.
  4. 7. The layer surrounding the core that reflects light back in
  5. 9. Before optical fibers, most telephone cables used to be made of ______ wires
Down
  1. 1. This machine turns the light back into sound, pictures, or computer codes
  2. 2. This machine turns information into light
  3. 4. Fibers made of glass or plastic
  4. 8. The inner part of each fiber cable