EASY
8th CBSE
IMPORTANT
Earn 100

Most vibrating objects generate sound of several frequencies simultaneously. True or false?

Important Questions on Sound

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
The quality of two sounds with the same fundamental frequency differs because of the number and relative loudness of the _____ produced.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
The sound produced by a tuning fork has no harmonics. True or false?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
The pitch of the sound produced in a guitar can be altered by reducing the vibrating length of the wire. True or false?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
What is the name given to sound produced by irregular vibrations?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
What travels faster—light or sound?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
A soft board will _____ (reflect/ absorb) most of the sound falling on it.
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
What is the unit in which loudness of sound is measured?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q B
Prolonged exposure to noise louder than _____ dB can lead to permanent hearing damage.