Sound - Class 9 Science CBSE ICSE
Improve your understanding of Sound by practicing the below questions from class 9 Science.
Sound waves do not travel through ____________.
Sound waves are ____________.
The frequency which is not audible to the human ear is _____________.
The frequency of a wave travelling at a speed of 500 ms-1 is 25 Hz. Its time period will be ______.
Sound and light waves both ______________.
A trough in a transverse wave is so called because it is __________.
If 25 sound waves are produced per second, what is the frequency in hertz?
When sound travels through air, the air particles ______.
____________ is an instrument used to listen to sounds produced by the body and to listen to the lungs, heart, and intestinal tract.
A ___________ is the sound associated with the shock waves created by the supersonic flight of an aircraft.
Topics in Class 9 Science: