Classification of the Frequency of Sounds That Living Things Can Hear

Classification of the Frequency of Sounds That Living Things Can Hear – In this world, the sound is no longer an everyday occurrence. In everyday life, there are numerous sounds to be heard. The roar of daily vehicle engines, the sound of birds chirping, and human conversation are just a few of the sounds that can be heard at any time. And what exactly is sound?

The energy of longitudinal waves produced by vibrations in an object is defined as sound. Because it propagates through various mediums, even the energy of several sounds can be heard by the ear.

The following are examples of sound propagation mediums:

• solid
• liquid
• gas

A sound wave is defined as sound traveling at a finite speed through a medium. In addition, the number of the speed of sound in a dense medium will be greater than the number of the speed of sound in a gas medium. Because temperature can influence the increase in speed or the propagation of sound. And sound speed is the distance traveled by sound per second.

Classification of the Frequency of Sounds That Living Things Can Hear

Oscillation in pressure, tension, particle displacement, particle velocity, and other variables can all be defined as sound. Propagated through a medium with internal strength or through the superposition of propagated oscillations. Because sound can be seen as a wave motion in the air or an elastic medium, it is also referred to as a stimulus in physics. Furthermore, sound can be viewed as an excitation of various auditory mechanisms to produce sound perception, in which case the sound is also referred to as touch.

Sound can be classified into several types based on frequency, which are as follows:

Infrasound

Infrared sound is defined as a sound wave with a vibration frequency of 20 hertz. This sound can only be heard by certain animals, such as rhinos and elephants, and is not audible to humans.

Earthquakes are one source of infrasound waves, and seismic waves produced by earthquakes are often referred to as infrasound waves. Seismic waves are not detectable by humans; only animals can detect them. And animals that can detect earthquakes by listening to these infrasound waves will usually move as quickly as possible to avoid an earthquake.

Audiosonic

Audiosonic is a sound wave with a vibration frequency ranging from 20 to 20,000 hertz. In contrast to infrared waves, audio sonic waves are audible to the human ear. And these waves are produced by a variety of conditions, including musical instruments, human conversations, collisions between objects, and all vibrating objects that can be heard by the human ear.

Surprisingly, humans cannot hear vibrations with a frequency of 20 Hz or 20 vibrations per second or greater than 20 kHz or 20,000 vibrations per second.

Ultrasonic

Ultrasonic is a high-frequency wave with a frequency of more than 20,000 hertz. Most materials can be penetrated deeply by ultrasonic waves. Ultrasonic waves, like infrared waves, cannot be heard by the human ear; only certain animals, such as dolphins and bats, are capable of hearing this type of wave.

Dolphins use ultrasonic waves to navigate and find food in the sea’s darkness.

Understanding the Sound Concept

Have you ever considered how a frictional sound can be heard clearly by the ear?

For example, consider fireworks, which can be seen from a distance but remain audible even after the fireworks have been extinguished. Of course, if the situation is investigated further, there will be numerous scientific explanations. And for your convenience, here are some explanations about the energy of several sound waves.

You should be aware that sound is a type of longitudinal wave produced by an object’s vibration. And a longitudinal wave is a wave whose propagation direction is the same as the vibrations. You can see a comparison in the illustration below.

Illustration of Wave Propagation

When someone hits the drum, the surface vibrates, tightening and even stretching the air column. As a result, the vibrating air molecules will spread in various directions. Because air molecules that are close together will produce high pressure, whereas molecules that are stretched will almost certainly produce a low pressure. Then, in the air, two waves with high and low pressure will alternately move. As a result, the waves can be picked up by the human ear, allowing you to hear the sound of the drums.

And you must be aware that sound waves transform into mechanical waves, which require a medium to propagate.

As a result, sound waves cannot propagate in a vacuum, such as space.

Everything Energy-Related is also The Energy of Number

And, as for why fireworks can be seen from a distance, the light is seen first, followed by the sound, because sound waves have a limited propagation speed. Whereas sound waves travel at a slower rate, light waves travel at a faster rate. Sound waves, on the other hand, cannot compete with or outperform light waves.

The number of sound waves depends heavily on the medium of propagation. When compared to liquids and gases, the sound produced by solids will undoubtedly travel faster. And the speed of propagation of this wave will increase as the temperature of the medium rises.

This is information about sound waves and how they are classified. With the sound, life will undoubtedly become more colorful.

And determining the number from the frequency is not an easy task, but if you are diligent in practicing and learning more about the energy of number sound or sound or frequency, it will pique your interest in this physics. It could be useful!