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      Ch 25/26 Waves & Sound Quiz on QuizRevolution

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      Ch 25/26 Waves & Sound Quiz
      myStudiyo Media
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      Ch 25/26 Waves & Sound Quiz
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      When a sound source moves towards you, what happens to the frequency?
      Wrong
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      • it increases

      • it decreases

      • it remains the same

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      Comments:
      1. When a sound source moves towards you, what happens to the frequency?
        1. it increases
        2. it decreases
        3. it remains the same
      2. As the sound of a car’s horn passes & recedes from you, the pitch seems to
        1. increase
        2. decrease
        3. stays the same
        4. doubles
      3. The frequency of a vibrating source will always equal the frequency of sound waves created
        1. true
        2. false
      4. Increased amplitude of a light wave results in __
        1. a shift towards blue light
        2. a shift towards red light
        3. a brighter light
        4. an absorbed light wave
      5. A moving source must emit a sound in order for it to make a shock wave.
        1. true
        2. false
      6. Loudness of sound corresponds to the ___ of the sound wave.
        1. frequency
        2. wavelength
        3. amplitude
        4. velocity
      7. The phenomenon of beats results from sound _
        1. refraction
        2. reflection
        3. interference
        4. absorption
      8. Waves created by an earthquake are called _
        1. transverse waves
        2. shake waves
        3. seismic waves
        4. sound waves
      9. Any type of wave may be distorted.
        1. true
        2. false
      10. The number of vibrations or waves per unit of time is called
        1. frequency
        2. period
        3. wavelength
        4. velocity
      11. Which wave behavior results in a change in frequency?
        1. reflected wave
        2. refracted wave
        3. doppler wave
        4. absorbed wave
      12. Interference effects the loudness of sounds.
        1. true
        2. false
      13. Sound waves can not travel in ___.
        1. air
        2. water
        3. steel
        4. a vacuum
      14. The source of all wave motion is __
        1. movement of matter
        2. a harmonic object
        3. a vibration
        4. region of variable high & low pressure
      15. A __ wave resembles a transverse wave but occurs in mediums that are fixed at both ends
        1. reflected
        2. diffracted
        3. standing
        4. refracted
      16. Type of wave used by police to determine the velocity of a vehicle is a _ wave
        1. reflected
        2. refracted
        3. doppler
        4. standing
      17. Waves that occur in the same region at the same time undergo _
        1. absorption
        2. distortion
        3. interference
        4. reflection
      18. As a speaker increases the velocity of vibrations, the pitch of the sound produced _
        1. increases
        2. decreases
        3. remains the same
      19. A speaker makes sound by vibrating back & forth creating compressions & rarefactions
        1. true
        2. false
      20. Interference is a property of only some types of waves
        1. true
        2. false
      21. An object is made to vibrate by another vibrating object that is nearby. This is called a
        1. resonant vibration
        2. forced vibration
        3. natural vibration
        4. automatic vibration
      22. A disturbance that repeats regularly in space and time is called _
        1. wave
        2. vibration
        3. sound
        4. transverse wave
      23. An object moving through a medium faster than the speed of waves in the medium, a 3D __
        1. shock wave is produced
        2. bow wave is produced
        3. standing wave is produced
        4. reflected wave is produced
      24. A repeating back and forth motion about an equilibrium position is called __
        1. vibration
        2. wave
        3. period
        4. frequency
      25. Multiple reflections of a sound wave is called ___
        1. a bounced wave
        2. an echo
        3. a reverberation
        4. a natural frequency wave
      26. The distance between successive identical parts of a wave is called __
        1. crest
        2. amplitude
        3. wavelength
        4. midpoint
      27. The angle of incident wave equals the angle of __ wave.
        1. reflected
        2. refracted
        3. diffracted
        4. absorbed
      28. The intensity of a sound wave can be measured but the loudness of it can not.
        1. true
        2. false
      29. The field of study that analyzes the behavior of waves is called _
        1. sound dynamics
        2. sound engineering
        3. acoustics
        4. wave dynamics
      30. Waves produced by throwing a rock in a pond are called __ waves.
        1. longitudinal
        2. compression
        3. transverse
        4. electromagnetic
      31. When you adjust the tuner on a radio set, you are adjusting the natural frequency of
        1. true
        2. false
      32. When resonance occurs, what occurs?
        1. velocity of sound wave increases
        2. frequency of sound wave increases
        3. wavelength of sound wave increases
        4. amplitude of sound wave increases
      33. Two waves arrive at the same place at the same time exactly in phase with each other.
        1. 4m
        2. 2m
        3. 1m
        4. 0.5m
      34. Antinoise technology use constructive interference to decrease the loudness of devices
        1. true
        2. false
      35. Sound waves travel faster in the air than in water
        1. true
        2. false
      36. Waves that meet a boundary between 2 mediums thus changing the waves velocity are
        1. reflected
        2. refracted
        3. diffracted
        4. absorbed
      37. All of a wave’s energy is reflected as it strikes an object.
        1. true
        2. false
      38. a seismic wave is an example of __
        1. a longitudinal wave
        2. a transverse wave
        3. a standing wave
        4. a doppler wave
      39. Red light has a longer wavelength than violet light. Which has the greatest frequency?
        1. red light
        2. violet light
        3. neither: they have the same frequency
      40. A wave with a vibration that is at right angles to the direction the wave is traveling is
        1. a longitudinal wave
        2. a transverse wave
        3. a standing wave
        4. a doppler wave
      41. Waves that change direction when they bounce off of a barrier are
        1. reflected
        2. refracted
        3. diffracted
        4. absorbed
      42. Destructive interference of radio waves results in static.
        1. true
        2. false
      43. The intensity of sound is measured in decibels.
        1. true
        2. false
      44. Sound waves that are above 20,000 Hz, to high for humans to hear, are called _
        1. subsonic
        2. supersonic
        3. ultrasonic
        4. infrasonic
      45. Sound travels faster in air if the air is ___
        1. warm
        2. cold
        3. neither: the velocity is the same
      46. Frequency which needs minimum energy to continue vibrating at that frequency is_ frequency
        1. forced
        2. resonant
        3. natural
        4. automatic
      47. When a wave source moves toward a receiver, the receiver encoutners _
        1. an increase in wave frequency
        2. an increase in wave velocity
        3. an increase in both wave frequency & velocity
        4. neither an increase in wave frequency or velocity
      48. When a sound source moves towards you, what happens to the wavelength?
        1. it increase
        2. it decreases
        3. it remains the same
      49. A longitudinal wave can also be called a compression wave.
        1. true
        2. false
      50. A pulse of high pressure air is called a ___.
        1. compression
        2. rarefaction
        3. crest
        4. trough
      51. A sounding board encounters forced vibrations which amplify the sound it produces
        1. true
        2. false
      52. The thicker an instrument’s string, the higher the pitch.
        1. true
        2. false
      53. A reflected sound wave is called _
        1. a bounced wave
        2. an echo
        3. a reverberation
        4. a natural frequency wave
      54. Electromagnetic waves are __
        1. transverse waves
        2. longitudinal waves
        3. both types of waves
        4. neither type of wave
      55. Waves that encounter a medium whose electron's natural frequency match frequency of wave _
        1. reflected
        2. refracted
        3. diffracted
        4. absorbed
      56. A disturbance in air in which the pressure is lowered is called a __
        1. compression
        2. rarefaction
        3. crest
        4. trough
      57. Sound is an example of a ___wave.
        1. a longitudinal wave
        2. a transverse wave
        3. a standing wave
        4. a doppler wave
      58. Which of the following would be most likely to transmit sound the fastest?
        1. water in a pool
        2. wood in a desk
        3. air in a classroom
        4. steel in a bridge
      59. Waves carry energy from place to place.
        1. true
        2. false
      60. A wave whose frequency changes due to the motion of the source is a __wave.
        1. a longitudinal wave
        2. a transverse wave
        3. a standing wave
        4. a doppler wave
      61. Waves that encounter an obstacle in its path & spead out around the object are
        1. reflected
        2. refracted
        3. diffracted
        4. absorbed
      62. The time needed for one back & forth motion or one wave is called _
        1. vibration
        2. wave
        3. period
        4. frequency
      63. A sonic boom is __
        1. roduced as a plane breaks through the sound barrier
        2. produced by subsonic bullets as well as subsonic aircraft
        3. swept behind a plane flying faster than speed of sound
        4. all of the choices
      64. A wave that is a result of interference between an incident (original) & reflected wave is
        1. a longitudinal wave
        2. a transverse wave
        3. a standing wave
        4. a doppler wave
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