16 Questions
What is the process where the ear transforms sound vibrations into nerve impulses that are interpreted by the brain as sounds?
Hearing
What is the change in the static pressure of any media when a sound wave is passing through?
Sound pressure
What is defined as the sound power per unit area?
Sound intensity
What is the logarithm of the ratio of a given sound pressure to the reference sound pressure in decibels?
Sound pressure level
What part of the outer ear collects sound, acts as a funnel to amplify sound, and directs sound toward the ear canal?
Auricle
What is the conversion of sound into electrical signals called?
Mechanoelectrical transduction
What is the main function of the auditory canal?
Preventing harmful items from entering the ear canal
What is the main function of the tympanic (eardrum) membrane?
Transferring sound into the ossicles of the middle ear
What is the function of the Eustachian tube in the middle ear?
Impedance Matching
What are the three tiny bones that are attached in the middle ear?
Malleus, Incus, Stapes
What is the approximate resonant frequency of the middle ear?
1000 Hz
What is the length of the auditory canal in meters?
0.025 m
What is the diameter of the auditory canal?
$0.7cm$
What causes the tympanic membrane to vibrate?
Slight pressure variation
What is responsible for preventing harmful items from entering the ear canal?
$0.7cm$ diameter auditory canal
What will happen if there is a contraction of Stapedius muscle in response to loud sounds?
Reduction in sound striking the tympanic membrane
Explore the speed and properties of sound waves, sound pressure, sound intensity, and the function of the human ear from a physical perspective. Learn about the transformation of sound vibrations into nerve impulses and their interpretation by the brain as sounds.
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