Sound propagates in:

Sound wave cannot propagate in

Sound wave is :

Our Ears are :

Speakers:

The audible sound has frequencies:

Sounds whose frequencies Below 20 Hz is :

Ultra sounds have frequencies :

Echo is a bounce of sound on an obstacle by :

The time separating production of sound and receiving its echo is t=2 sec ( Velocity of sound in air is 340m/sec then the distance is :

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2024 Review Game Zone | About | Privacy | Contact | Terms | Site Map