Waves

4. less dense region of a longitudinal wave
6. the angle of incidence is equal to the angle of reflection
9. special type of wave pattern that forms when waves of equal wave length and amplitude traveling in opposite directions continuously interfere with each other
10. waves that makes matter in a medium move back and forth at right angles to the direction the wave travels
11. measure of how many wavelengths pass a fixed point each second
12. region where the medium is crowded and dense in a longitudinal wave
14. the bending of waves around a barrier
16. lowest point of a transverse wave
17. the ability of two or more waves to combine and form a new wave
18. measure of the energy in a wave

1. distance between one point in the wave and the nearest point just like it
2. when a wave strikes an object and bounces off
3. wave in which matter in the medium moves back and forth in the same direction the wave travels
5. the blending of a wave caused by a change in its speed as it moves from one medium to another
7. repeating disturbances that transfer energy through matter or space
8. ability of an object to vibrate by absorbing energy at its natural frequency
13. material through which a wave transfers energy
15. the highest point of a transverse wave