Across
- 3. describes shapes that are curving or bulging outwards
- 4. How high above or how low below the resting point a wave moves
- 7. the change in direction of a propagating wave
- 8. The color with the longest wavelength at 700 nanometers
- 12. Compress and expand like an accordion; particles are displaced parallel to the direction the wave travels
- 13. The unit in which frequency is measured
- 14. the process of becoming smaller or pressed together
- 16. describes shapes that curve inward
- 18. the high or low quality of a sound
- 22. all the electromagnetic waves in order of increasing frequencies
- 25. The bottom of the wave
- 26. a decrease in the density of something
- 27. mechanical vibrations transmitted by an elastic medium
- 29. Contain both electricity and magnetic fields, move at the speed of light, do not need a medium to pass through, and have different wavelengths and frequencies
- 30. Disturbances that move energy from one place to another
Down
- 1. Electromagnetic waves with the most energy
- 2. matter per cubic cm
- 5. process by which light changes passing through a narrow slit
- 6. The distance from crest to crest or trough to trough in between two waves
- 9. electromagnetic radiation that can produce visual sensation
- 10. the phenomenon of a propagating wave being thrown back
- 11. Need a medium to pass through in order to move
- 15. The color with the shortest wavelength at 380 nanometers
- 17. the absence of matter
- 19. The top of the wave
- 20. smaller wavelengths and therefore higher energy
- 21. periodic back-and-forth motion of the particles of an elastic body or medium
- 23. The waves which are perpendicular to the wave motion
- 24. a form of electromagnetic radiation with wavelength shorter than that of visible light, but longer than X-rays; present in sunlight
- 28. How many waves pass a specific point in a given amount of time