
Understanding Sound and Hearing

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard
Jennifer Brown
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the outer ear, also known as the pinna, in the hearing process?
It amplifies sound waves.
It funnels sound waves into the auditory canal.
It converts sound waves into electrical signals.
It balances the pressure in the ear.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the ear is responsible for converting vibrations into electrical signals?
The eardrum
The ossicles
The cochlea
The semicircular canals
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much louder is a sound that measures 80 decibels compared to one that measures 70 decibels?
Twenty times as loud
Ten times as loud
Five times as loud
Twice as loud
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what decibel level can sounds start to become annoying and potentially harmful with prolonged exposure?
50 decibels
60 decibels
70 decibels
90 decibels
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the recommended action for workers exposed to loud noises for extended periods?
Listen to music
Increase the distance from the noise source
Use ear protection
Take frequent breaks
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