11788695
Descrição
Quiz por Ben Armstrong, atualizado more than 1 year ago
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Criado por Ben Armstrong
quase 7 anos atrás
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Questão 1
Questão
A sound wave is different to a light wave in that a sound wave is
Responda
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Produced by an oscillating object and a light wave is not.
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Not capable of traveling through a vacuum.
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Not capable of diffracting and a light wave is.
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Capable of existing with a variety of frequencies and a light wave has a single frequency.
Questão 2
Questão
A sound wave is a pressure wave; regions of high (compressions) and low pressure (rarefactions) are established as the result of the vibrations of the sound source. These compressions and rarefactions result because sound...
Responda
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is more dense than air and thus has more inertia, causing the bunching up of sound.
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waves have a speed that is dependent only upon the properties of the medium.
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is like all waves; it is able to bend into the regions of space behind obstacles.
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is able to reflect off fixed ends and interfere with incident waves
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vibrates longitudinally; the longitudinal movement of air produces pressure fluctuations.
Questão 3
Questão
The external ear consists of the part on the outside of the head called the ________ plus the ________, which leads to the eardrum.
Responda
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ossicle, oval window
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pinna, ear canal
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cochlea, auditory nerve
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round window, middle canal
Questão 4
Questão
The middle ear consists of a series of minuscule bones – the malleus, incus and stapes –connecting the eardrum to the cochlea. The primary function of the middle ear is to ____________.
Responda
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localize sound
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identify sound frequency
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concentrate sound
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provide information about head movement
Questão 5
Questão
The principle elements for converting sounds into neural activity are found on the basiliar membrane. This membrane vibrates in response to sound, with the apex displaced maximally by ______ sound, and the base displaced maximally by _______ sound.
Responda
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low-frequency, high-frequency
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high-frequency, low-frequency
Questão 6
Questão
What are auditory objects?
Responda
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The 'building blocks' of an auditory scene
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Particles in a vacuum
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Any object which produces a frequency <89 dB
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It is not known
Questão 7
Questão
What is a fundamental frequency (F0)?
Responda
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20 cycles per millisecond
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The lowest frequency produced oscillation of an object
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Large amplitude waves
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A harmonic frequency
Questão 8
Questão
Which one or more contribute to increased vocal AND facial attractiveness?
Responda
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sexual dimorphism
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an increased “distance” to the average voice/face
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a decreased “distance” to the average voice/face
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there is no physical indicator of vocal attractiveness
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BOTH sexual dimorphism and decreased distance to average
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