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## Quiz 17 : Waves II Study Flashcards  Looking for Introductory Physics Homework Help?

## Quiz 17 :Waves II  During a time interval of exactly one period of vibration of a tuning fork, the emitted sound travels a distance:
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E

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Choose question tag  This graph shows the position of an element of air as a function of time as a sound wave passes through it.Which letter corresponds to the period of the wave? Free
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A

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Choose question tag  Two small identical speakers are connected (in phase)to the same source.The speakers are 3 m apart and at ear level.An observer stands at X, 4 m in front of one speaker as shown.The sound she hears will be most intense if the wavelength is: Free
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E

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Choose question tag  Two waves are out of phase by half a wavelength.What is this in radians?
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Choose question tag  The speed of a sound wave is determined by:
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Choose question tag  What is a wavefront?
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Choose question tag  The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = sm cos (kx - ωt).Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If sm = 12 µm, how long does it take an element of air to move from a displacement of 12 µm to a displacement of 0 µm?
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Choose question tag  A fire whistle emits a tone of 170 Hz.Take the speed of sound in air to be 340 m/s.The wavelength of this sound is about:
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Choose question tag  Two sound waves are traveling through the same medium.They have the same amplitude, wavelength, and direction of travel.If the phase difference between them is 7π, the type of interference they exhibit is:
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Choose question tag  The difference between transverse and longitudinal waves:
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Choose question tag  Take the speed of sound to be 340 m/s.A thunder clap is heard about 3 s after the lightning is seen.The source of both light and sound is:
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Choose question tag  This graph shows the position of an element of air as a function of time as a sound wave passes through it.Which letter corresponds to the amplitude of the wave? Multiple Choice
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Choose question tag  The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = sm cos (kx - ωt).Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If sm = 12 µm, what is the displacement of an element of air located at x = 1.2 m at time t = 0.11 s?
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Choose question tag  Two small identical speakers are connected (in phase)to the same source.The speakers are 3 m apart and at ear level.An observer stands at X, 4 m in front of one speaker as shown.If the amplitudes are not changed, the sound he hears will be least intense if the wavelength is: Multiple Choice
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Choose question tag  The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m3.If the displacement amplitude of a 440-Hz sound wave is 10 µm, what is its pressure-variation amplitude?
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Choose question tag  Which of the following properties of a sound wave determine its "pitch"?
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Choose question tag  At points in a sound wave where the gas is maximally compressed, the pressure
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Choose question tag  The bulk modulus of water is 2.2 x 109 Pa, and its density is 1.0 x 103 kg/m3.What is the speed of sound in water?
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Choose question tag  Two waves are out of phase by half a wavelength.What is this in degrees?
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