1. A longitudinal wave is: 1.A wave where the particle oscillation is perpendicular to the direction of wave motion 2.A wave where the particle oscillation is parallel to the direction of wave motion

2. How many nodes and antinodes? 1.4, 5 2.5, 8 3.5, 4 4.4, 8

3. Which of the following sources of sound has the shortest wavelength? 1.A female soprano singer at 2,000 Hz 2.A bass guitar at 150 Hz 3.A male voice at 500 Hz 4.The rumble of thunder at 75 Hz

4. When waves interference constructively to produce a pattern of light and dark regions they are 1.Out of phase 2.In phase 3.Standing waves 4.Cancelling one another

5. When a distant object approaches you, such as a galaxy in outer space, you will observe 1.The Doppler effect 2.Blue shift 3.Red shift 4.Both 1 & 2 5.Both 1 & 3

6. Leader Board 500John 400Jillian 400Emily Gallagher 400Zach 300Julia 300Sam C 300Austin N 300Barrett 300Andy 300Justin

7. Two successive crests of a transverse wave are 1.20 m apart. Eight crests pass a given point every 12.0 s. What is the wave speed? 1.0.667 m/s 2.1.80 m/s 3.0.800 m/s 4.9.60 m/s

8. The period of a pendulum may be decreased by 1.Shortening its length 2.Increasing the mass of the bob 3.Moving its equilibrium point 4.Increasing its length

9. If the pendulum completes exactly 12 cycles in 2.0 minutes, what is the frequency of the pendulum? 1.0.10 Hz 2.0. 17 Hz 3.6.0 Hz 4.10 Hz

10. The period of this wave is… 1.2 seconds 2.4 seconds 3.6 seconds

11. The amplitude of this wave is… 1.4.8 meters 2.4.0 meters 3.2.4 meters

12. Leader Board 900John 800Julia 800Jillian 800Austin N 800Emily Gallagher 800Zach 700Sam C 700Barrett 700Kyle 700Merrick

13. A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an amplitude of 0.53 m. The two waves interfere. What is the amplitude of the resultant wave if the interference is constructive? 1.0.22 m 2.0.53 m 3.0.75 m 4.1.28 m

14. A total of 5 s passes as a child completes one complete swing on a playground swing. The period of the swing is 1.1/5 s 2.20 s 3.5 s 4.1 s

15. The frequency of a certain pendulum is 0.5 Hz. The period of this pendulum is 1.0.2 s 2.0.5 s 3.2 s 4.5 s

16. Which of the following factors has the greatest effect on the frequency of a swinging pendulum? 1.Friction 2.Amplitude 3.Mass 4.Length

17. If a given pendulum is moved from Earth to a location where the gravitational acceleration is greater than Earth’s, the frequency of the pendulum’s swing will 1.Increase 2.Decrease 3.Be unchanged 4.Vary with the mass of the bob

18. Leader Board 1200John 1100Zach 1000Julia 1000Jillian 1000Sam C 1000Austin N 1000Barrett 1000Kyle 1000Emily Gallagher 1000Andy

19. The material through which a mechanical wave travels is 1.A medium 2.Empty space 3.Water 4.Air Response Grid Countdown 10

20. The human voice has been shown to be capable of shattering a glass. This is possible due to… 1.Resonance 2.Doppler Effect 3.Interference 4.Harmonics 5.Timbre Response Grid Countdown 10

21. When a transverse wave passes through water, water molecules are displaced 1.Permanently in the direction of the wave motion 2.Permanently in a direction perpendicular to the wave 3.Temporarily in the direction of the wave motion 4.Temporarily in a direction perpendicular to the wave Response Grid Countdown 10

22. You are traveling in a car near by a moving train. The train sounds its whistle, but you fail to hear the Doppler effect. This may be because… 1.You are traveling away from the train too fast to detect it 2.You are traveling towards the train too fast to detect it 3.You are traveling at the same speed as the train 4.You are traveling away from the train too slowly to detect it 5.You are traveling towards the train to slowly to detect it Response Grid Countdown 10

23. The distance between two troughs of a transverse wave is the wave’s 1.Amplitude 2.Wavelength 3.Frequency 4.Rarefaction Response Grid Countdown 10

24. Leader Board 0Participant 1 0Participant 2 0Participant 3 0Participant 4 0Participant 5

25. Suppose you are dangling your foot in a swimming pool, making ripples (waves) by moving your foot up and down. What could you do to make the ripples travel faster through the water? 1.Move your foot up and down more frequently 2.Move your foot up and down less frequently 3.Move your foot up and down more strongly 4.None of the above Response Grid Countdown 10

26. A wave is passing through a uniform medium. As the frequency of this wave increases, its wavelength 1.Depends on amplitude 2.Decreases 3.Increases 4.Does not change Response Grid Countdown 10

27. A ____ wave travels through a medium as a series of compressions and rarefactions. 1.Sine 2.Longitudinal 3.Pulse 4.Transverse Response Grid Countdown 10

28. When two transverse waves traveling through a medium meet and exactly coincide, the resulting displacement of the medium 1.Is the sum of the displacements of each wave 2.Is zero 3.Is always greater than the displacement of either wave alone 4.Is always destructive Response Grid Countdown 10

29. When two waves having displacements in opposite directions meet, ____ occurs. 1.Complete destructive interference 2.No interference 3.Constructive interference 4.Destructive interference Response Grid Countdown 10

30. Leader Board 0Participant 1 0Participant 2 0Participant 3 0Participant 4 0Participant 5

31. A wave pattern on a stretched string appears to be stationary. This wave pattern is an example of 1.A longitudinal wave 2.A non-periodic wave 3.A pulse wave 4.A standing wave Response Grid Countdown 10

32. In a standing wave on a vibrating string, a point that appears to remain stationary is a(n) 1.Antinode 2.Point of constructive interference 3.Node 4.rarefaction Response Grid Countdown 10

33. An ocean wave has a frequency of 2 Hz and a speed of 20 m/s. What is the wavelength of this wave? 1.0.1 m 2.5 m 3.10 m 4.40 m Response Grid Countdown 10

34. Two waves meet and interfere constructively. Which one of the following factors increases? 1.Period 2.Frequency 3.Amplitude 4.Wavelength Response Grid Countdown 10

35. You sit in the audience and listen to a concert band play. Which instruments sound reaches your ears first, the flute or the trombone? 1.The flute 2.The trombone 3.They reach your ears at the same time. Response Grid Countdown 10

36. Leader Board 0Participant 1 0Participant 2 0Participant 3 0Participant 4 0Participant 5

37. A string is rigidly attached to a post at one end. Several pulses of amplitude 0.15 m sent down the string are reflected at the post and travel back down the string without a loss of amplitude. What is the amplitude at a point on the string where the maximum displacement points of two pulses cross? What type of interference is this? 1.0.30 m; constructive 2.0.30 m; destructive 3.0.00 m; constructive 4.0.00 m; destructive Response Grid Countdown 10

38. A string is attached to a post loosely and free to move. Several pulses of amplitude 0.15 m sent down the string are reflected at the post and travel back down the string without a loss of amplitude. What is the amplitude at a point on the string where the maximum displacement points of two pulses cross? What type of interference is this? 1.0.30 m; constructive 2.0.30 m; destructive 3.0.00 m; constructive 4.0.00 m; destructive Response Grid Countdown 10

39. What type of wave is a sound wave? 1.Mechanical and Transverse 2.Mechanical and Longitudinal 3.Electromagnetic and Transverse 4.Electromagnetic and Longitudinal Response Grid Countdown 10

40. The main factor that determines the speed of a sound wave is… 1.The amplitude 2.The frequency 3.The intensity 4.The properties of the medium 5.The wavelength Response Grid Countdown 10

41. Which of the following factors determines the pitch of a sound? 1.Amplitude 2.Intensity 3.Frequency 4.Phase 5.Speed Response Grid Countdown 10

42. Leader Board 0Participant 1 0Participant 2 0Participant 3 0Participant 4 0Participant 5

43. While driving, you hear a police car siren approaching from behind. If the siren produces a 1500 Hz sound, you will hear a sound… 1.Greater than 1500 Hz 2.Less than 1500 Hz 3.Equal to 1500 Hz 4.You will not be able to hear this sound Response Grid Countdown 10

44. At room temperature, sound will travel most slowly through which of the following? 1.Iron 2.Water 3.Aluminum 4.Mercury 5.Helium Response Grid Countdown 10

45. An observer waits for an approaching train. The train blows its whistle approaches the station at a constant speed. The frequency of sound detected by the observer compared to the original whistle will be… 1.higher 2.lower 3.Increasingly higher 4.Increasingly lower Response Grid Countdown 10

46. Final Leader Board 0Participant 1 0Participant 2 0Participant 3 0Participant 4 0Participant 5