EASY
8th CBSE
IMPORTANT
Earn 100

How can you show that a sounding tabla is vibrating?

Important Questions on Sound

EASY
8th CBSE
IMPORTANT
On what factor does the loudness of a sound depend?
EASY
8th CBSE
IMPORTANT
When we put our ear to a railway line, we can hear the sound of an approaching train even when the train is far off but its sound cannot be heard through the air. Why? 
MEDIUM
8th CBSE
IMPORTANT
Why sound cannot travel through vacuum (or through outer space)?
EASY
8th CBSE
IMPORTANT
What type of pollution is caused by the working of mixer and grinder in the kitchen?
MEDIUM
8th CBSE
IMPORTANT
Why should we not put a pen or pencil in our ears?
EASY
8th CBSE
IMPORTANT
Name any two common musical instruments and identify their vibrating parts.
EASY
8th CBSE
IMPORTANT
What is the difference between noise and music? Can music become noise sometimes?
MEDIUM
8th CBSE
IMPORTANT
Draw a labelled diagram of larynx and explain its functions.