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3. Waves
Properties
of Waves
Interactions
of Sound
Waves
Sound
Technology
Grab Bag
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15 Points
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25 Points
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30 Points
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30 Points

4. Disturbances that transfer energy from one place to another.

5. What are waves?

6. The material through which a wave can travel.

7. What is a medium?

8. Waves that require a medium to travel through.

9. What are mechanical waves?

10. In this type of wave, particles move parallel to the direction the wave travels.

11. What is a longitudinal wave?

12. In this type of wave, particles move perpendicularly to the direction the wave travels.

13. What is a transverse wave?

14. the distance from any point on a wave to an identical point on the next wave.

15. What is
wavelength?

16. The time required for one wavelength to pass a given point.

17. What is the wave period?

18. A measure of how far the particles in the medium move away from their normal rest position.

19. What is amplitude?

20. This tells how many cycles occur in an amount of time, usually 1 second.

21. What is frequency?

22. This is what frequency is measured in.

23. What is Hertz?

24. A reflected sound wave.

25. What is an echo?

26. The use of reflected sound to find objects.

27. The use of reflected sound to find objects.

28. What is echolocation?

29. This happens when two or more waves overlap and combine to form one wave.

30. What is interference?

31. This happens when a sound wave matches the natural frequency of an object and causes the object to vibrate.

32. What is resonance?

33. When waves overlap and combine to form a wave with a larger amplitude, or height.

34. What is constructive interference?

35. The system that uses echoes to determine the locations of objects or to communicate.

36. What is sonar?

37. Telephones change sound into this type of signal before it changes back to sound waves.

38. What is electrical?

39. Sound waves that are used to look inside a person’s body.

40. What is ultrasound?

41. The type of waves cordless phone change electrical signals into before changing them back.

42. What are radio waves?

43. The frequencies at which ultrasound is used on the human body.

44. What is 1 million to 10 million?

45. The type of matter that transmits light.

46. What is transparent?

47. The type of matter that transmits light but scatters it in all directions.

48. What is translucent?

49. The type of matter that does not let any light pass through it because it reflects light, absorbs light, or both.

50. What is opaque?

51. The bending of a wave as it passes from one medium to another.

52. What is refraction?

53. When light strikes an object and goes in different directions

54. What is scattering?

55. Final Jeopardy
Make your wager

56. The speed of light in a vacuum (in either m/s or miles per second)

57. What is 300,000,000 m/s OR
180,000,000 miles per second?