Why does vibration make a sound, the principle of vibration sound

Because the vibration causes the vibration of the surrounding medium, this vibration is transmitted to the ear through the air vibration, so that the eardrum vibrates, and this vibration becomes a signal, which is transmitted to the brain through the auditory nerve, and the brain gets the signal, which is quoted as a feeling.

Vibration can produce sound because the air is squeezed to produce sound waves, and the sound waves enter the human ear through the medium, causing the vibration of the eardrum, and then transmitted from the nerve to the cerebral cortex, so that people can hear sound.

Sound is actually the brain's analysis of signals from the eardrum to vibrate. is an explanation of the artificial definition.

The vibrations deform the medium, and the deformation deforms your eardrum so that you can hear the sound.

Sound can only be produced by vibration, and vibration can make sound. That's what you say, that's what you say.

Vibrational sounding is a very profound physical subject, you don't have to know so deeply, you just need to know this law.

Sound, it is indeed very complicated, to be precise, sound is not the vibration of the object to produce the sound, but, the vibration, and cause the surrounding air to vibrate, at this moment, there is no sound production, sound waves with the air and other medium into the ear, the eardrum in the ear vibrates, to the brain to produce a signal, this is the person hears the sound, so that the brain in order to make people feel the existence of vibration and self-generated, a function gradually formed by the poet in the process of evolution, so that the object vibration can only produce vibration, Sound waves can be generated in the medium, and the real human can hear the sound, which is the function of the ear, and the vibration of the object does not make sound, but the human ear can transmit the vibration to the brain, and the brain analyzes it into a sound that people can understand. Exactly how sound is produced after entering the brain is not in the realm of physics. I can't tell.

Big mistake. Write it this way"Shock"It's absolutely not! It should be vibration!

Sound is produced by the vibration of an object. It's the production of sound.

Wouldn't you just ask the teacher?

Vibrational sound principle: Sound is a sound wave produced by the vibration of an object. It is a wave phenomenon that is propagated by a medium, such as air or a solid or liquid, and can be perceived by the auditory organs of humans or animals.

The object that initially vibrates is called the sound source. Sound vibrates and travels in the form of waves. Sound is the motion formed by the propagation of sound waves through any medium.

In physics, sound is generated by the vibration of an object, and the object that is emitting sound is called the sound source. The number of times an object vibrates in a second is called frequency, and the unit is hertz, the letter Hz. The human ear can hear the sound of 20 20000 Hz, and the most sensitive is the sound between 200 and 800 Hz.

In nature, there is light energy, water energy, mechanical energy, electrical energy in life, and in fact, sound also has energy. For example, if two objects with the same frequency are struck on one of them, the other object will also vibrate and make sounds, a phenomenon called resonance. Sound propagation is the vibration that drives another object, indicating that sound also has energy.

People use decibels to express the strength of sound, and the symbol is decibels, which just causes hearing. People call sounds with frequencies higher than what can be heard by the human ear ultrasound, and sounds with frequencies lower than what the human ear can hear are called infrasound.

Sound is a pressure wave: when a musical instrument is played, a door is slammed or a table is struck, their vibrations cause the medium-air molecules to vibrate rhythmically, causing the surrounding air to produce dense changes to form sparse longitudinal waves, which produce sound waves, and this phenomenon continues until the vibration disappears. As a kind of wave, frequency and amplitude have become important properties to describe the wave, the magnitude of the frequency corresponds to what we usually call pitch, and the amplitude affects the magnitude of the sound.

Sound can be broken down into superpositions of sine waves of different frequencies and intensities.

To hear the sound, there must be medium 1In everyday life, we say "sound" is a vibration that is in a certain frequency range and can be recognized by the human ear. It can be said that the sound must be because of the vibration, but the vibration does not necessarily have a sound because the frequency does not meet the acceptable frequency range for the human ear.

2.If the landlord refers to "sound" including "sound" that cannot be heard by the human ear, then it can be said that "as long as it vibrates, it will make a sound".

It could just be an infrasound wave that is too low in frequency, or an ultrasound wave that is too high. It cannot be received by the human ear, but it can be received by other detection instruments. (The premise is that there is a medium) The production of "sound" and the propagation of "sound" are two different processes, and the few people upstairs should not be confused.

"Sound cannot be transmitted without a medium in a vacuum, but it does not mean that it is not produced." And in addition to the vast majority of the sounds we hear that are transmitted through the air, some of them are transmitted to the eardrum through our bodies (muscles, bones). So no matter how much you block your ears, you can still hear a lot of sounds.

The most typical example is that when you block your ears to speak, your voice not only does not decrease, but it feels louder, which is because what people hear you say is mainly transmitted by the body. So it doesn't matter if it's vacuum, as long as we can touch the sounding object, we can hear the sound.

The object that makes the sound must be vibrating, so the vibrating object must also make a sound, but the person who makes the sound may not be able to hear it.

The essence of sound is vibration, and the object that is making sound is called the sound source, and the sound source must vibrate. For example, the vocal cords, whose vibrations enable people to pronounce and speak.

There are also various musical instruments, stringed instruments vibrating through strings, drums vibrating through drum faces, harmonicas vibrating through reeds, and so on. Vibration depends on the object, so the propagation of sound requires a medium, which means that the vacuum cannot transmit sound.

If the noisy alarm clock in the morning is covered with a glass bell cover and the inside is vacuumed with an aspirator, no matter how noisy the alarm clock is, it will immediately be dumb, because there is no medium, and the sound cannot be transmitted at all.

The sound is produced by vibration, and the pitch of the cup is mainly related to the vibration frequency of the air in the quilt.

According to the principle of physical vibration, the less water in the cup, the more air, the faster the vibration and the higher the pitch; The more water, the less air, the slower the vibration, and the lower the pitch.

The principle of vibration is the reciprocating motion of an object.

Answer: Vibrating objects are not necessarily capable of emitting sound.

There are two conditions for the production of sound, one is that there must be a sound source, that is, a vibrating object; The second is to have a medium for transmitting sound, such as air.

An object that vibrates in a vacuum does not make any sound.

Therefore, vibrating objects are not necessarily capable of emitting sound.