what medium required for a sound wave?
Answers
Answer:
Sound is something without which we cannot imagine our life. Everything around us is associated with sound waves. Chirping of birds, drilling of machine, alarm clock beeping, playing the guitar, bouncing of the ball, etc., everything produces sound. But have you ever thought how do we hear these sounds? What really is sound?
A sound is a form of energy produced by the vibration of particles in a medium. Let us understand how sound waves are produced with the help of an example: In a drum, when drum sticks hit the drum, the outer membrane of the drum vibrates up and down. Whenever the drum membrane moves up it compresses the air just above it. While the air molecules expand when the drum membrane vibrates down. This compression and expansion of air produce a difference in air pressure. This pressure difference in the air is carried like ripples in ponds and result in the production of sound by a drum.
Answer:
- Sound waves need medium ton travel through .
- It is longitudinal wave .
- It consist of compression and rarefaction which travelling through a medium.
- It propagate through medium such as : solid , liquid and gas.
- Sound could not progress from vaccum, as it doesn't contain molecules that can vibrate or carry the sound waves.