2. T Waves and Sound Jeopardy

3. T Today’s topics are….

4. T Basics

5. T Sound Off

6. T Encounters

7. T Resonate Me…

8. T Wildcard

9. $100 $200 $300 $400 $500 BasicsSound OffEncounters Resonate Me… Wildcard FJ

10. T This is the source of all wave motion…

11. T What is a vibration?

12. T This is defined as the distance between successive points on a wave.

13. T What is wavelength?

14. T This is why breaking a brick over your head is safer than bouncing the brick off your head. T This is the time needed for a wave to complete one full cycle.

15. T What is period?

16. T This is the region on a longitudinal wave that corresponds to a trough on a transverse wave.

17. T What is a rarefaction?

18. T Quadrupling the distance from a source of sound will do this to the intensity. T This is why breaking a brick over your head is safer than bouncing the brick off your head. T The wave below was produced when a girl sings for 0.04 seconds. Assuming the speed of sound is 320 m/s, this is the wave’s frequency and wavelength.

19. T What is frequency = 300 Hz and wavelength = 1.07 m?

20. T Sound is this type of mechanical wave.

21. T What is a longitudinal wave?

22. T This is the greatest determining factor for the speed of sound in a medium.

23. T What is the elasticity of the medium?

24. T This is roughly how many times faster than the speed of sound the plane below is traveling. 

25. T What five times?

26. T A singer produces a sound wave that has a distance of 6.4 meters between successive crests. If it takes 0.02 seconds for a full wave to pass a listener in the audience, this is the wave’s frequency and velocity. T This is the direction the source of sound is moving during the Doppler Shift.

27. T What is to the right?

28. T A singer produces a sound wave that has a distance of 6.4 meters between successive crests. If it takes 0.02 seconds for a full wave to pass a listener in the audience, this is the wave’s frequency and velocity.

29. T What is frequency = 50 Hz and velocity = 320 m/s?

30. T This is the type of collision that one or more bodies are deformed and heat is lost. T This is what will happen when the two waves below meet.

31. T What is destructive interference?

32. T This what bats use to find food.

33. T What is ultrasonic radar (sonar, echo, reflection)?

34. T This is the type of interference the creates a standing waves

35. T What are both constructive and destructive interference.

36. T Daily Double!

37. T A 1134-Hz tuning fork is sounded at the same time a piano note is struck. You hear three beats per second. This is the frequency of the piano string.

38. T What is 1131 Hz or 1137 Hz??

39. T This is the number of full waves, nodes and antinodes tin the following standing wave.

40. T What is 2 waves, 5 nodes and 4 antinodes?

41. T This is what forcing a body to vibrate at its own natural frequency is called.

42. T What is resonance?

43. T This bridge collapsed in large part due to resonance.

44. T What is the Tacoma Narrows Bridge?

45. T This is the work needed and power exerted by 500 kg Stay Puff Marshmallow Man to climb a 200m high building in 10 seconds. Assume g =10 m/s 2 T This type of resonance tube has an antinode on either end when it is resonating.

46. T What is W = 1.0 x10 6 J and P = 1.0 x 10 5 W? T What is an open tube?

47. T This is a sketch of an open tube experiencing its 3rd level of resonance.

48. T What is 340 Hz? T What is L = 3/2 f = v/(2/3L) = 3f 1

49. T A 15 centimeter closed tube resonates at 480 Hz. This will be the next tube length that will resonate with the same 480 Hz. T This is the work needed and power exerted by 500 kg Stay Puff Marshmallow Man to climb a 200m high building in 10 seconds. Assume g =10 m/s 2 T This is the level of resonance for this resonating closed tube.

50. T What is the 3rd level of resonance?

51. T This is the number of antinodes shown in the following standing wave.

52. T What is 2?

53. T This is how increasing frequency and the amplitude of a sound wave will effect what a listener will hear.

54. T What is: Increasing frequency means a higher pitch and increasing amplitude means a louder sound?

55. T This type of mechanical wave vibrates the material is passes through perpendicular to the direction the waves is traveling in.

56. T What is a transverse wave?

57. T This type of interference occurs when the crests of two waves encounter one another.

58. T What is constructive interference?

59. T This observer hears the louder sound.   

60. T What is the both do?

61. T Final Jeopardy

62. T Some of a wave's energy is always being dissipated as heat. In time, this will reduce the wave's…

63. T What is amplitude?