Question 5 Very short answer type questions:
(i)What is decibel?
(ii)Write an equation that shows the relation between frequency and time period.
(iii)Give two examples of oscillatory motion.
(iv)What is gruff sound?
(v)Name three basic parts of human ear. Solution
(i)It is a unit that is used to indicate the loudness of the sound.
(iii)Swing hammock and pendulum.
(iv)A low pitch sound wave is called gruff sound.
(v)Outer, middle and inner ear.
This CBSE class 8 sound Worksheet is prepared keeping in mind the latest syllabus of CBSE . This has been designed in a way to improve the academic performance of the students. If you find mistakes , please do provide the feedback on the mail.
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