Across
- 2. motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance.
- 3. waves that travel through a medium and you can hear them
- 5. reflecting of light
- 9. length from crest to crest
- 10. not translucent
- 11. lowest point in a wave
- 12. length from middle of the wave to the crest
- 13. bending of light
Down
- 1. able to be seen through
- 4. something for sound to travel through
- 6. highest point in a wave
- 7. the natural agent that stimulates sight and makes things visible.
- 8. waves where the displacement of the medium is in the same direction as the direction of the travel of the wave.