Across
- 6. Wave signals generated electronically from digital information.
- 7. are used to transmit television and radio programs
- 8. when light is obstructed or blocked.
- 9. A wave with a specific pattern that carries information.
- 11. allows all light to pass through.
- 12. code A unique 3-signal combination of dots and dashes codes for each letter of the alphabet and numbers 0 through 9.
Down
- 1. are used to transmit information from a remote control to a television.
- 2. allows no light to pass through.
- 3. Wave signals that are not generated from digital information.
- 4. are used to transmit information between cellphones or between an internet router and a computer.
- 5. allows some light to pass through.
- 10. the science of light properties and behavior.