EASY
8th CBSE
IMPORTANT
Earn 100

Distinguish between infrasonic and ultrasonics.

Important Questions on Sound

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q C
What do you mean by time period of a vibrating object?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q C
What is the amplitude of a vibrating object?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q C
What is the frequency of a vibrating object? How is it related to shrillness of sound?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q C
Why do women have shriller voices than men?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q D
In what way does loudness of sound depend on amplitude? If the amplitude is increased by three times, by how much does the loudness increase?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q D
Ramesh measured the time gap between lightning and thunder, and found that it was 3 seconds. Assuming light covers the distance instantly, what is the distance of the clouds from Ramesh?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q D
Why can you not hear the echo if you stand 10 m away from a wall and shout towards it?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 13 - Sound>EXERCISES>Q D
How is sound produced in our throat?