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Senior High School: 11th and 12th Grade
Physics
Waves - Sound
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Q.1
What are echoes?
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An impressionist repeating the noise
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Reflections of sounds
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Reflections of light
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Refraction of sounds
Q.2
How do sound waves travel?
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Vibrations through a medium
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Via a carrier particle called a photon
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Via a carrier particle called a neutrino
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Sound waves can only travel in a vacuum
Q.3
What is an ultrasound wave?
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An ultrasound wave is a sound wave which has a frequency higher than 20 kHz
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An ultrasound wave is a sound wave which has the same frequency as an audible sound wave, however it has much greater energy
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Ultrasound waves are transverse waves
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There are no such things as ultrasound waves
Q.4
What is the loudness of a sound wave determined by?
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The medium through which it travels
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Its amplitude
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Its frequency
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Sound waves all have the same loudness
Q.5
What is the pitch of a sound determined by?
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Its amplitude
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Its frequency
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The medium through which it travels
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Sound waves all have the same pitch
Q.6
The car horn and car unfortunately find themselves under water in a river. The car horn still produces a sound wave with a frequency of 680 Hz, however the speed of the sound is dramatically increased to 1485 m/s. What is the wavelength of the sound wave in water?
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0.46 m
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0.92 m
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2.18 m
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1,009,800 m
Q.7
What kind of a wave is a sound wave?
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Latitudinal
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Electromagnetic
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Longitudinal
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Transverse
Q.8
If a sound wave is made louder, what happens to the amount of energy the wave has?
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The energy increases
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The energy decreases
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The energy remains constant
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More information is required to answer the question
Q.9
A car horn produces a sound wave of frequency 680 Hz. When the sound wave is traveling through air, it has a wavelength of 0.5 m. What is the speed of the sound wave?
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300 m/s
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330 m/s
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340 m/s
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400 m/s
Q.10
If the pitch of a sound wave is increased, does the time period between waveforms increase or decrease?
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Increases
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Decreases
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Remains the same
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Randomly changes to a discrete value
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