Across
- 5. number of wavelengths per second
- 6. electromagnetic waves that humans give off and TV remotes use
- 8. electromagnetic waves that causes sunscreen
- 15. waves that can travel through matter and empty space
- 17. bottom of a wave
- 18. longer wavelength=___________ frequency
- 19. electromagnetic waves that humans can see
- 21. waves that can only travel through matter
- 23. some light passes through
- 24. light passes through matter
- 25. atoms in matter absorb light
Down
- 1. length of a wave from one point to the corresponding point on the next wave
- 2. no light passes through
- 3. higher frequency=____________ pitch
- 4. electromagnetic waves used in a microwave
- 7. waves bend as they pass through an opening
- 9. larger amplitude=____________ sound
- 10. electromagnetic waves used to see bone
- 11. shorter wavelength=___________ frequency
- 12. light changes direction when it passes from one material to another
- 13. electromagnetic waves with the longest wavelength that transmit data
- 14. waves bounce off a surface
- 16. top of a wave
- 20. electromagnetic waves with the shortest wavelength that treat cancer
- 22. height of the wave from resting position to the top of wave
- 24. all light passes through