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15 Cards in this Set
- Front
- Back
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The sense or act of hearing.
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Audition
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What sounds are we sensitive to?
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Faint sounds
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What are the sound characteristics?
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Frequency (pitch)
Intensity (loudness) |
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The number of complete wavelengths that pass a point in a given time.
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Frequency
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A tones experience higness or lowness; depends on frequency.
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Pitch
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Long waves have a ____ frequency and ____ pitch.
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Low
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Short waves have a ____ frequency and a ____ pitch.
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High
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How do we meausre sounds?
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Decibles
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Collects and sends sounds to the eardrum.
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Outer Ear
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Chamber between eardrum and cochlea containing three tiny bones (hammer, anvil, stirrup) that concentrate the vibrations of the eardrum on the cochlea’s oval window.
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Middle ear
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part of the ear, containing the cochlea, semicircular canals, and vestibular sacs.
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Inner ear
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How does the brain interpret loudness?
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The number of activated hair cells.
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The right ear receives a more ____ sound, and recieves sound slightly ____ than the left ear.
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Intense
Sooner |
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How many miles/hour does sound travel?
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750 miles/hour
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Localization of Sound
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1. Intensity differences
2. Time differences Time differences as small as 1/100,000 of a second can cause us to localize sound. The head acts as a “shadow” or partial sound barrier. |
