The document defines key terms related to sound and waves, including: - A disturbance that transfers energy from point to point is called a wave. - The back and forth movement of matter where energy is transferred is called vibration. - Sound travels faster through solids than liquids or gases. - Softer materials like carpet absorb sound rather than reflecting it.

1. Solids, Liquids or Gases Sound Movement & Matter Terminology Wild Card Frequency & Pitch 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500

2. Disturbance that transfers energy from point to point

3. wave 100

4. The bottom, or lowest point of a wave

5. trough 200

6. Region in a sound wave where particles are pushed together (upward curves)

7. compression 300

8. The number of waves produced in a unit of time

9. frequency 400

10. Measure of the amount of energy in a sound wave

11. amplitude 500

12. The back and forth movement of matter where energy is transferred is called?

13. vibration 100

14. TRUE OR FALSE – Does sound travel in a vacuum?

15. FALSE 200

16. Sound that does not get absorbed is what?

17. 300 reflected

18. TRUE OR FALSE – Vibrations move at different speeds in different material and have different wavelengths

19. TRUE 400

20. TRUE OR FALSE – When sound waves move through a medium, the molecules travel with the wave to transfer the energy along

21. FALSE 500

22. Sound travels fastest through what medium?

23. solid 100

24. Would sound move faster through water or the air?

25. water 200

26. Softer materials, such as carpet, do what to sound?

27. absorb it 300

28. Sound travels slowest through what medium?

29. gases 400

30. Would sound move faster through a door or a string?

31. door 500

32. With increased frequency would the pitch be high or low?

33. high 100

34. TRUE OR FALSE – The higher the amplitude the louder the sound

35. TRUE 200

36. The highness or lowness of a sound is called what?

37. pitch 300

38. TRUE OR FALSE - The lower the number of waves per unit of time the higher the pitch

39. FALSE 400

40. A decrease in amplitude would cause a louder or softer sound?

41. softer 500

42. The top, or highest point, of a wave is called what?

43. crest 100

44. Animals, such as bats, use what type of communication?

45. echolocation 200

46. The distance from the crest of one wave to the crest of another is called what?

47. wavelength 300

48. In order to find out information about our oceans, what type of communication is used?

49. sonar 400

50. The region in a sound wave where particles spread apart (downward curves)

51. rarefaction 500

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