How do you hear sound?

Ears, you probably thought that they weren’t as important as they really are. Ears are in the top ten most important organs in your body. Without them u wouldn’t be able to hear and that would be a problem. Imagine crossing a street without hearing anything? You probably would get hit by a car. How do u hear sound? Hearing sound is a very complicated process. Other processes such as smell and taste are chemical reacted processes but hearing is a mechanical reaction. Your sense of hearing is mainly based on physical movement.

            But if you want to know how hearing works you first have to know how sounds work. Sound is made when the vibration is moving through matter. For example the earth, water, gas and air are things these vibrations normally travel through. We mostly hear sounds through the air in our atmosphere. When vibrations in the air are made the air particles are pushed around it. The air particles in turn move the air particles around the pulse carrying it longer through the air.

            We also hear different sounds from different vibrating objects because of the variations in their sound frequency. A higher frequency surely means that the fluctuation in air pressure switches back and forth more quickly. When the vibration switches back and forth faster the sound tends to be higher pitch, when the vibration switches back and forth slower the sound tends to be much lower. Air pressure plays a big role in this process. The level in air pressure when it fluctuates is called amplitude which determines how loud the sound is.

            But another important process on how you hear is how your ear catches the sound waves. The outer part of your ear called the pinna catches the waves. Have you ever wondered why your hears have so many ridges and grooves in them? Well when the sound wave hits your ear it goes into those ridges helping you pinpoint the direction where the sound came from. But the brain always has a big role in everything in your body. When the ear catches the wave it translates the sound into something you can understand.