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Vibration and Waves Review

Vibration and Waves Review. Ch 25-26. A longitudinal wave is:. A wave where the particle oscillation is perpendicular to the direction of wave motion A wave where the particle oscillation is parallel to the direction of wave motion. Countdown. How many nodes and antinodes?. 4, 5 5, 8 5, 4

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Vibration and Waves Review

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  1. Vibration and Waves Review Ch 25-26

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

  3. How many nodes and antinodes? • 4, 5 • 5, 8 • 5, 4 • 4, 8 Response Grid Countdown

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

  5. When waves interference constructively to produce a pattern of light and dark regions they are • Out of phase • In phase • Standing waves • Cancelling one another Response Grid Countdown

  6. When a distant object approaches you, such as a galaxy in outer space, you will observe • The Doppler effect • Blue shift • Red shift • Both 1 & 2 • Both 1 & 3 Response Grid Countdown

  7. Leader Board

  8. 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? • 0.667 m/s • 1.80 m/s • 0.800 m/s • 9.60 m/s Response Grid Countdown

  9. The period of a pendulum may be decreased by • Shortening its length • Increasing the mass of the bob • Moving its equilibrium point • Increasing its length Response Grid Countdown

  10. If the pendulum completes exactly 12 cycles in 2.0 minutes, what is the frequency of the pendulum? • 0.10 Hz • 0. 17 Hz • 6.0 Hz • 10 Hz Response Grid Countdown

  11. The period of this wave is… • 2 seconds • 4 seconds • 6 seconds Response Grid Countdown

  12. The amplitude of this wave is… • 4.8 meters • 4.0 meters • 2.4 meters Response Grid Countdown

  13. Leader Board

  14. 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? • 0.22 m • 0.53 m • 0.75 m • 1.28 m Response Grid Countdown

  15. A total of 5 s passes as a child completes one complete swing on a playground swing. The period of the swing is • 1/5 s • 20 s • 5 s • 1 s Response Grid Countdown

  16. The frequency of a certain pendulum is 0.5 Hz. The period of this pendulum is • 0.2 s • 0.5 s • 2 s • 5 s Response Grid Countdown

  17. Which of the following factors has the greatest effect on the frequency of a swinging pendulum? • Friction • Amplitude • Mass • Length Response Grid Countdown

  18. 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 • Increase • Decrease • Be unchanged • Vary with the mass of the bob Response Grid Countdown

  19. Leader Board

  20. The material through which a mechanical wave travels is • A medium • Empty space • Water • Air Response Grid 10 Countdown

  21. The human voice has been shown to be capable of shattering a glass. This is possible due to… • Resonance • Doppler Effect • Interference • Harmonics • Timbre Response Grid 10 Countdown

  22. When a transverse wave passes through water, water molecules are displaced • Permanently in the direction of the wave motion • Permanently in a direction perpendicular to the wave • Temporarily in the direction of the wave motion • Temporarily in a direction perpendicular to the wave Response Grid 10 Countdown

  23. 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… • You are traveling away from the train too fast to detect it • You are traveling towards the train too fast to detect it • You are traveling at the same speed as the train • You are traveling away from the train too slowly to detect it • You are traveling towards the train to slowly to detect it Response Grid 10 Countdown

  24. The distance between two troughs of a transverse wave is the wave’s • Amplitude • Wavelength • Frequency • Rarefaction Response Grid 10 Countdown

  25. Leader Board

  26. 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? • Move your foot up and down more frequently • Move your foot up and down less frequently • Move your foot up and down more strongly • None of the above Response Grid 10 Countdown

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

  28. A ____ wave travels through a medium as a series of compressions and rarefactions. • Sine • Longitudinal • Pulse • Transverse Response Grid 10 Countdown

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

  30. When two waves having displacements in opposite directions meet, ____ occurs. • Complete destructive interference • No interference • Constructive interference • Destructive interference Response Grid 10 Countdown

  31. Leader Board

  32. A wave pattern on a stretched string appears to be stationary. This wave pattern is an example of • A longitudinal wave • A non-periodic wave • A pulse wave • A standing wave Response Grid 10 Countdown

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

  34. An ocean wave has a frequency of 2 Hz and a speed of 20 m/s. What is the wavelength of this wave? • 0.1 m • 5 m • 10 m • 40 m Response Grid 10 Countdown

  35. Two waves meet and interfere constructively. Which one of the following factors increases? • Period • Frequency • Amplitude • Wavelength Response Grid 10 Countdown

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

  37. Leader Board

  38. 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? • 0.30 m; constructive • 0.30 m; destructive • 0.00 m; constructive • 0.00 m; destructive Response Grid 10 Countdown

  39. 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? • 0.30 m; constructive • 0.30 m; destructive • 0.00 m; constructive • 0.00 m; destructive Response Grid 10 Countdown

  40. What type of wave is a sound wave? • Mechanical and Transverse • Mechanical and Longitudinal • Electromagnetic and Transverse • Electromagnetic and Longitudinal Response Grid 10 Countdown

  41. The main factor that determines the speed of a sound wave is… • The amplitude • The frequency • The intensity • The properties of the medium • The wavelength Response Grid 10 Countdown

  42. Which of the following factors determines the pitch of a sound? • Amplitude • Intensity • Frequency • Phase • Speed Response Grid 10 Countdown

  43. Leader Board

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

  45. At room temperature, sound will travel most slowly through which of the following? • Iron • Water • Aluminum • Mercury • Helium Response Grid 10 Countdown

  46. 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… • higher • lower • Increasingly higher • Increasingly lower Response Grid 10 Countdown

  47. Final Leader Board

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