LC Waves

2. A wave pattern that appears to vibrate in place and not travel.
4. A region in a sound wave where particles are bunched together (high pressure).
5. The unit for frequency (cycles per second).
8. The change in a wave's frequency (like a siren's pitch) due to the movement of the source or the observer.
10. A point on a standing wave that has the maximum motion (peak displacement).
12. A region in a sound wave where particles are spread apart (low pressure).
15. The type of interference when waves combine to make a smaller or zero wave (cancelling out).
16. The lowest point of a transverse wave.
18. The highest point of a transverse wave.
19. A wave spreading out after passing through a gap or around an obstacle.
22. The resulting fixed design of light and dark or high/low points when coherent waves meet.
23. A wave that doesn't need a medium to travel (e.g., light, radio).
26. The type of interference when waves combine to make a bigger wave (adding up).
27. A wave bouncing back off a surface or boundary.
28. Restricting a transverse wave's vibration to a single plane.

1. A wave that needs material (a medium) to travel (e.g., sound).
3. The maximum height or displacement from the rest position.
6. The number of cycles passing a point per second.
7. A point on a standing wave that is always still (zero displacement).
9. Wave motion is back-and-forth (parallel) to the travel direction (e.g., sound).
11. Wave motion is side-to-side (perpendicular) to the travel direction (e.g., water ripples).
13. The substance (air, water, solid) a mechanical wave moves through.
14. A wave bending as it enters a new medium and changes speed.
17. The distance for one complete cycle (e.g., crest to crest).
20. One complete vibration or repetition of the wave's pattern.
21. When two or more waves combine to form a new pattern.
24. The time it takes for one complete cycle (T=1/f).
25. Two wave sources with the same frequency and constant synchronization.