Across
- 3. A wave with a specific pattern that carries information
- 4. science of light properties and behavior is called optics
- 9. Wave signals that are not generated from digital information
- 10. Used to transmit television and radio programs
- 11. Used to transmit information between cellphones or between an internet router and a computer
- 12. Matter that does not allow light to pass through
Down
- 1. Used to transmit information from a remote control to a television
- 2. Matter that allows all light to pass through
- 5. Matter that allows some light to pass through
- 6. The region where light is obstructed or blocked
- 7. A unique 3-signal combination of dots and dashes codes for each letter of the alphabet and numbers 0 through 9.
- 8. Wave signals generated electronically from digital information