what is sound and vibration
Answers
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound
Sound is all about vibrations.
The source of a sound vibrates, bumping into nearby air molecules which in turn bump into their neighbours, and so forth. This results in a wave of vibrations travelling through the air to the eardrum, which in turn also vibrates.
In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. ... Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound.
It takes 3 different vibrations to hear a sound, since sound is made when things vibrate (or wiggle) : The object that makes the noise vibrates (our bell). The air molecules vibrate as the sound moves through the air. The eardrum vibrates when the sound wave reaches it.
It's all about vibrations when it comes to sound.
- A sound's source vibrates, causing surrounding air molecules to bump against their neighbours, and so on. This causes a wave of vibrations to flow through the air to the eardrum, which vibrates as well.
- Sound is a vibration that travels through a transmission medium such as a gas, liquid, or solid as an acoustic wave. Ultrasound waves beyond 20 kHz are not audible to humans. Infrasound refers to sound waves below 20 Hz.
- Because sound is created when things vibrate (or wiggle), it requires three separate vibrations to perceive a sound: The source of the noise vibrates (our bell). The air molecules vibrate as a result of the vibrations.