EASY
8th CBSE
IMPORTANT
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What is noise?

Important Questions on Sound

EASY
8th CBSE
IMPORTANT
What is oscillation?
EASY
8th CBSE
IMPORTANT

Label the different parts of the human ear and answer the following question.

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What is the function of the eardrum?

EASY
8th CBSE
IMPORTANT

Label the different parts of the human ear and answer the following question.

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Name the three bones present in the middle ear.

HARD
8th CBSE
IMPORTANT
What is the time period and frequency of a pendulum that oscillates 40 times in 4 s?
EASY
8th CBSE
IMPORTANT
What is the time period of the vibrations produced by the wings of a mosquito if it produces vibrations at an average rate of 500 vibrations per second?
EASY
8th CBSE
IMPORTANT
Why is noise pollution harmful to humans?
EASY
8th CBSE
IMPORTANT
Why should sharp objects not be put inside the ears?
EASY
8th CBSE
IMPORTANT
Soft surfaces are better _____ of sound than hard surfaces.
(Choose from: reflectors / absorbers)