1. Chapter 13 Review Mr. Hauser

2. Rules of the Game Working in TEAMS, you will be asked to answer questions from the assigned chapters. You have 30 seconds to write the answer down on the dry erase board. When the teacher says TIME’S UP, a team leader will stand up and show the teacher their answer.

3. Rules (Continued) Each correct answer is worth one point, unless otherwise stated. Teams can lose points for inappropriate conduct, comments, or cheating. The team with the most points at the end of the game wins!

4. Question 1 The very top part of a wave is called the ___________.

5. crest

6. Question 2 The distance between equilibrium and crest of a wave is called the ______. A)frequency B)wavelength C)amplitude D)period E)speed

7. C) amplitude

8. Question 3 The distance from one point on a wave to the same point on the next consecutive wave is called __________. A)frequency B)wavelength C)amplitude D)period E)speed

9. B) Wavelength

10. Question 4 The mathematical name for the shape of a wave is called a __________ wave.

11. sine

12. Question 5 Since sound cannot travel in a vacuum it is called a(n)… A) mechanical wave B) non-mechanical wave C) transverse wave D) Electromagnetic wave

13. A) Mechanical wave

14. Question 6 What are the metric units used to measure frequency?

15. Hertz

16. Question 7 The faster the sound moves through the air, … A)The colder the air must be. B)The warmer the air must be. C)The dryer the air must be. D)The higher frequency sound it must be.

17. B) The warmer the air must be

18. Question 8 What is the range of human hearing? A. 5 Hz-5,000 Hz B. 10 Hz - 10,000 Hz C. 20 Hz - 20,000 Hz D. 30 Hz - 30,000 Hz E. 40 Hz - 40,000 Hz

19. C) 20 Hz - 20,000 Hz

20. Question 9 What is the type of wave that vibrates perpendicular to its direction of travel? Hint: light, x-rays, radio waves fall into this category

21. Transverse waves

22. Question 10 What is the other name for a longitudinal wave?

23. Compression wave

24. Question 11 In a longitudinal wave the area between compressions is called…

25. rarefaction

26. Question 12 What is the symbol used for wavelength?

28. Question 13 Which two factors affect the speed of sound? A)frequency and period B)amplitude and wavelength C)air temperature and humidity D)wavelength and elasticity

29. C) Air temperature and humidity

30. Question 14 The pitch of a sound depends on which of these? A.wavelength B.amplitude C.intensity D.loudness E.frequency

31. E) frequency

32. Question 15 Periodic motion of an object that results from a restoring force that is proportional to displacement is called…

33. Simple Harmonic Motion

34. Question 16 What are the units used to measure the spring constant “k”?

35. Newtons/Meter

36. Question 17 When sound waves bend due to a difference in air temperature it is called… A)reflection B)reverberation C)echoing D)refraction

38. Question 18 Sound waves that are beyond the frequency range of human hearing are called _____________.

39. Ultrasonic

40. Question 19 If an object oscillates 20 complete cycles in 5 seconds, what is its period?

41. 0.25 seconds

42. Loudness of sound is measured in units called... Question 20

43. Decibels

44. The special frequency an object has that depends on its elasticity and shape is referred to as... Question 21

45. Natural Frequency

46. When an object receives a sympathetic vibration from an outside source that matches its natural frequency and the object vibrates with a large amplitude _____________ is occurring. Question 22

47. Resonance

48. If the frequency of a radio wave is 95.1 MHz, and its speed is 300,000,000 m/s. What is its wavelength? Question 23

49. 3.15 meters

50. When two waves occupy the same space at the same time they __________ with one another. Question 24

51. Interfere

52. When two wave interfere that are in phase and the resulting wave that gets created has a larger amplitude __________ interfence has occured. Question 25

53. Constructive

54. The rhythmic pattern generated by the interference of two waves at a similar frequency is called… Question 26

55. Beats

56. This is the term for the apparent change in frequency due the motion of the source or observer. Question 27

57. Doppler Effect

58. If a source of sound is moving toward an observer, that observer would perceive… A)a higher pitch B)a lower pitch C) the same sound that the source would hear. Question 28

59. A) A higher pitch

60. If you are designing a pendulum clock to tick with a frequency of 1Hz, how long should it be? Question 29

61. 0.25 meters

62. From the lab, what was the only factor that affects the period of a pendulum? Question 30

63. Length

64. A spring has a constant of 2000 N/m. With a certain mass on it, it has a period of 0.840 seconds. How much mass is on it? Question 31

65. 35.7 kg

66. FINAL QUESTION A spring is stretched 6.7 cm when a 300 gram mass is on it. If the 300 g mass is replaced with a 500 gram mass and the spring-mass system is set in motion, what will the period be?

67. 0.67 seconds