waves part 1 vocab

1. the reduction of an item's density, the opposite of compression
4. a measurement of the amount of energy transferred by a wavelength
9. The process by which one substance, such as a solid or liquid, takes up another substance, such as a liquid or gas, through minute pores or spaces between its molecules
11. the visible region of the electromagnetic spectrum
12. a disturbance in a medium that carries energy without a net movement of particles
15. the bending of light or sound as it passes through something like a wall (sound) or a window (light)
16. The complete range of all types of radiation that has both electric and magnetic fields and travels in waves
17. the distance from one crest to another, or from one trough to another, of a wave

2. the region in a longitudinal wave where particles are closest together
3. a transparent object that refracts light to converge or diverge beams
5. motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance
6. the form of energy that makes it possible to see things
7. lowest point of wave
8. the top or highest part of something such as a wave or a hill
10. how often something occurs, or basically, how often a wave occurs
13. the throwing back by a body or surface of light, heat, or sound without absorbing it
14. a type of wave in which the medium's vibration is parallel to the direction of the wave, and the medium's displacement is in the same direction as that of the wave movement.