A sound wave is different to a light wave in that a sound wave is
Produced by an oscillating object and a light wave is not.
Not capable of traveling through a vacuum.
Not capable of diffracting and a light wave is.
Capable of existing with a variety of frequencies and a light wave has a single frequency.
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...
is more dense than air and thus has more inertia, causing the bunching up of sound.
waves have a speed that is dependent only upon the properties of the medium.
is like all waves; it is able to bend into the regions of space behind obstacles.
is able to reflect off fixed ends and interfere with incident waves
vibrates longitudinally; the longitudinal movement of air produces pressure fluctuations.
The external ear consists of the part on the outside of the head called the ________ plus the ________, which leads to the eardrum.
ossicle, oval window
pinna, ear canal
cochlea, auditory nerve
round window, middle canal
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 ____________.
localize sound
identify sound frequency
concentrate sound
provide information about head movement
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.
low-frequency, high-frequency
high-frequency, low-frequency
What are auditory objects?
The 'building blocks' of an auditory scene
Particles in a vacuum
Any object which produces a frequency <89 dB
It is not known
What is a fundamental frequency (F0)?
20 cycles per millisecond
The lowest frequency produced oscillation of an object
Large amplitude waves
A harmonic frequency
Which one or more contribute to increased vocal AND facial attractiveness?
sexual dimorphism
an increased “distance” to the average voice/face
a decreased “distance” to the average voice/face
there is no physical indicator of vocal attractiveness
BOTH sexual dimorphism and decreased distance to average
