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 Flashcards - Sound: 24 Flashcards |
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What type of wave is sound classified as? |
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 Mechanical wave |
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Fill in the blank: The audible range for most humans is between ____ Hz and ____ kHz. |
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 20, 20 |
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True or False: Sound can travel through a vacuum. |
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 False. Sound requires a medium to travel. |
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What happens to the loudness of sound as it travels further from its source? |
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 The loudness decreases. |
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What is the term for areas of high pressure in a sound wave? |
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 Compression |
Card: 10 / 24 |
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Fill in the blank: The distance between two consecutive compressions or rarefactions is known as ____. |
Card: 11 / 24 |
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 Wavelength |
Card: 12 / 24 |
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What is the relationship between frequency (f), wavelength (λ), and speed (v) of sound? |
Card: 13 / 24 |
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 V = fλ |
Card: 14 / 24 |
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What effect does raising the temperature have on the speed of sound in a medium? |
Card: 15 / 24 |
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It increases the speed of sound. |
Card: 16 / 24 |
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Fill in the blank: Sounds below 20 Hz are called ____. |
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 Infrasonic |
Card: 18 / 24 |
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True or False: The speed of sound is faster in gases than in solids. |
Card: 19 / 24 |
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 False. The speed of sound is faster in solids than in gases. |
Card: 20 / 24 |
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What is reverberation? |
Card: 21 / 24 |
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 The ongoing presence of sound due to multiple reflections. |
Card: 22 / 24 |
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What is echocardiography used for? |
Card: 23 / 24 |
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 To create images of the heart using ultrasonic waves. |
Card: 24 / 24 |
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