This page contains CBSE class 8 sound Extra Questions
along with their answers. We also have notes for this chapter that can be accessed through links given below
Very Short answer type questions
Short answer type questions:
(i)What is rarefaction?
(ii)Write two uses of echo.
(iii)Name any three wind instruments.
(iv)How do percussion or membrane instruments produce sound?
(v)What is music?
Short answer type questions/HOTS:
Vivek has an unpleasant voice whenever he tries to sing in front of his family members and they try to stop him. Why his family members try to stop him?
What is noise population? Give examples of it.
How do we control noise population?
Distinguish between audible and inaudible frequencies.
Calculate the frequency if the time period is 0.2 minutes.
Calculate the time period if frequency is 100 Hz.
When we pluck the strings of a guitar, thicker strings produce low pitch while thinner strings produce high pitch. Why?
How do wind instruments produce sound?
Long answer type questions:
Explain the parts of human ear. Draw a well-labelled diagram of human ear.
Explain the human voice box. Draw a well-labelled diagram.
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Class 8 Maths
Class 8 Science