To simply put, a sound is nothing but just a vibration. Sound happens only in our ears, mainly due to the reaction of our brain through signals from the nervous system. Two objects hit each other vibration is produced → it’s traveling through a medium (air) which is waves → reaches the eardrum which passes that signal through nervous system → to the brain, brain process the signal and surprise sound is produced.
For further clarity let’s take an example scenario.
Question : “If a tree falls in a forest and no one’s there to hear it fall, does it make a sound?”
Answer : The falling of the tree or any other disturbance will produce vibration of the air. If there be no ears to hear, there will be no sound.
* Reference taken from
Sounds are created when something vibrates, that shakes back and forth. This vibration sends waves of vibrations into the ears of the listener. When these waves reach our ears, they make our eardrums vibrate, and we hear the sound of the bell ringing. Sound always needs to travel through some kind of medium, such as air, water or metal.
The direction of sound waves – The sound wave travels in all directions. When it hits the listener’s ears, the sound can be heard. The further a sound wave travels, the more it spreads, this makes it more difficult for us to hear a distant sound. So the nearer we are to a sound the louder it sounds to us.
Compressions are the parts of the sound wave where the particles of the medium through which the sound travels are squeezed together. A sound’s volume, how loud or soft it is, depends on the sound wave. The more energy put into making a sound or a sound wave, the louder it will be.
Waves : formed when a sound is made and that moves through the air and carries the sound
Vibration : the state of being swung back and forth
Nervous system: is the highway along which your brain sends and receives information about what is happening in the body and around it
Signal : an object used to transmit or convey information
Direction : the path along which something moves, lies, or points