Across
- 4. number of waves that pass a fixed point
- 6. used for satellite communication
- 8. type of light the human eye cannot see
- 10. electromagnetic waves transmit
- 11. used to see inside the body and view bones
- 12. segment that can be seen by human eye
- 13. spectrum describes all kinds of it
- 16. highest frequency of waves on the spectrum
- 18. lowest frequency of waves on the spectrum
- 19. detected by heat
- 20. distance between crest of a wave
Down
- 1. transmission of energy in the form of waves
- 2. amount of different types of waves
- 3. radiation comes from the sun
- 5. measures the visible light
- 7. used for suntanning
- 9. how fast do waves travel
- 14. used in remote controls
- 15. abbreviation for electromagnetic radiation
- 17. color from the visible light spectrum