EASY
9th CBSE
IMPORTANT
Earn 100

What is a vacuum? Explain why sound cannot travel through a vacuum?

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Explain the term 'amplitude' of a wave. Draw the diagram of a wave and mark its amplitude on it.
EASY
9th CBSE
IMPORTANT
Distinguish between longitudinal and transverse waves.
EASY
9th CBSE
IMPORTANT
Are sound waves longitudinal or transverse?
EASY
9th CBSE
IMPORTANT
A cricket ball is seen to hit the bat first and the sound of hitting is heard a little later. Why?
EASY
9th CBSE
IMPORTANT
Explain why the flash of lightning reaches us first, and the sound of thunder is heard a little later?
EASY
9th CBSE
IMPORTANT
Explain why the flash of a gunshot reaches us before the sound of the gunshot?
EASY
9th CBSE
IMPORTANT
Which of the following terms apply to sound waves in the air and which to water waves?
Transverse, Rarefaction, Trough, Crest, Compression, Longitudinal.
EASY
9th CBSE
IMPORTANT
Name four ways in which sound can be produced.