Q. What is the phenomenon called when sound waves bend around obstacles?
-
A.
Refraction
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B.
Diffraction
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C.
Reflection
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D.
Absorption
Solution
Diffraction is the bending of sound waves around obstacles.
Correct Answer:
B
— Diffraction
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Q. What is the primary function of the outer ear?
-
A.
Sound amplification
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B.
Sound localization
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C.
Sound collection
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D.
Sound processing
Solution
The outer ear's primary function is to collect sound waves.
Correct Answer:
C
— Sound collection
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Q. What is the unit of measurement for sound intensity?
-
A.
Decibel
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B.
Hertz
-
C.
Pascal
-
D.
Newton
Solution
Sound intensity is measured in decibels (dB).
Correct Answer:
A
— Decibel
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-
A.
Hearing loss
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B.
Ringing in the ears
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C.
Ear infection
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D.
Balance disorder
Solution
Tinnitus is characterized by ringing or buzzing in the ears.
Correct Answer:
B
— Ringing in the ears
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Q. What type of sound wave is characterized by compressions and rarefactions?
-
A.
Longitudinal wave
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B.
Transverse wave
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C.
Surface wave
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D.
Standing wave
Solution
Sound waves are longitudinal waves, consisting of compressions and rarefactions.
Correct Answer:
A
— Longitudinal wave
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Q. Which condition is characterized by a sudden loss of hearing, often in one ear?
-
A.
Acoustic neuroma
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B.
Sudden sensorineural hearing loss
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C.
Meniere's disease
-
D.
Otosclerosis
Solution
Sudden sensorineural hearing loss is characterized by a rapid loss of hearing, often in one ear.
Correct Answer:
B
— Sudden sensorineural hearing loss
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Q. Which frequency range is typically considered to be within the human hearing range?
-
A.
20 Hz to 20 kHz
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B.
100 Hz to 10 kHz
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C.
1 Hz to 100 kHz
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D.
10 Hz to 1 kHz
Solution
The human hearing range is generally from 20 Hz to 20 kHz.
Correct Answer:
A
— 20 Hz to 20 kHz
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Q. Which part of the ear amplifies sound vibrations before they reach the cochlea?
-
A.
Eardrum
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B.
Ossicles
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C.
Auditory nerve
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D.
Semicircular canals
Solution
The ossicles amplify sound vibrations before they reach the cochlea.
Correct Answer:
B
— Ossicles
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Q. Which part of the ear is primarily responsible for converting sound waves into electrical signals?
-
A.
Cochlea
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B.
Eardrum
-
C.
Auditory canal
-
D.
Ossicles
Solution
The cochlea converts sound waves into electrical signals for the brain.
Correct Answer:
A
— Cochlea
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Q. Which type of hearing loss is caused by damage to the inner ear or auditory nerve?
-
A.
Conductive hearing loss
-
B.
Sensorineural hearing loss
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C.
Mixed hearing loss
-
D.
Central hearing loss
Solution
Sensorineural hearing loss is due to damage to the inner ear or auditory nerve.
Correct Answer:
B
— Sensorineural hearing loss
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