Waves, Sound and Light

3. When a wave bends as it moves into a new medium.
6. A scale that measures the strength of an earthquake.
7. The distance between two matching points on a wave (like crest to crest).
8. A surface wave that rolls like ocean waves.
11. Sudden movements of Earth’s crust.
14. Anything that has mass and takes up space.
15. Matter with particles spread far apart.
17. A wave where particles move back and forth in the same direction as the wave.
19. Wave – A long-wavelength electromagnetic wave used for communication.
23. An electromagnetic wave used in cooking and communication.
24. A type of wave that can travel through space without matter.
25. A tiny particle of light that carries energy in an electromagnetic wave.
26. The way a wave moves or travels through space or matter.
30. When an object vibrates strongly because it matches a wave’s frequency.
32. Giant ocean waves caused by underwater earthquakes.
34. A surface wave that moves the ground side to side.
36. Matter that flows but keeps volume.
37. When a wave bounces off a surface.
39. How fast a wave travels.
41. A unit used to measure sound intensity.
43. The number of waves that pass a point in one second.
45. The fastest seismic wave; travels through solids and liquids.
46. A wave of energy released during an earthquake.

1. A wave where particles move up and down, perpendicular to the wave’s direction.
2. The highest-energy electromagnetic waves.
4. Materials that waves travel through.
5. Electromagnetic waves felt as heat.
9. When energy from a wave is taken in by a material.
10. Empty space with no matter.
12. A system that uses sound waves to detect objects underwater.
13. When a wave passes through a material.
16. High-energy waves used to see inside the body.
18. When a wave spreads out after passing through an opening or around an object.
20. The height of a wave from the rest position; shows energy.
21. Determined by different wavelengths of visible light.
22. Electromagnetic waves from the sun that can cause sunburn.
25. How high or low a sound is (depends on frequency).
27. The lowest point of a transverse wave.
28. A type of wave that must travel through matter.
29. A movement of energy through space or through a medium.
31. Matter with tightly packed particles.
33. A seismic wave that moves side to side and only travels through solids.
35. Light – The part of the electromagnetic spectrum humans can see.
38. The quality or character of a sound.
40. The ability to do work or cause change.
42. The full range of electromagnetic waves.
44. The highest point of a transverse wave.