Is the loudness of the sound related to the distance from the vocal body 10

You think, sound is a vibration, vibration has energy, you think of it as the transmission of energy.

Now the sound travels in all directions. Imagine a circle, and the edge of the circle is where the sound is currently located. And the energy of the sound is stored evenly in it.

The total energy is the energy input at the beginning, so the total energy does not change. The radius of the circle is smaller at the beginning, so the circumference is also smaller, and you take a small arc length as the sound you hear. If the sound travels farther and the radius of the circle is larger, then if you still take the same arc length, the proportion of the circumference will be smaller, which means that less energy is stored in the sound heard.

All other things being equal, the louder the energy, the louder the sound (you can think of this, you don't have to have been taught by the teacher).

It can be seen that the farther away you are, the softer the sound you hear.

In practice, there is also a loss of energy, for example, when you hit an obstacle or something, the sound will be weakened faster if you consider them. Again, the answer is that the farther away, the lighter.

The loudness of the sound is also related to the distance from the emitter, the sound travels outward, the more dispersed, the weaker it is, and the louder it is.

In practice, it is the damped vibration, and as the distance increases, the amplitude becomes smaller and smaller, and the energy becomes more and more intense, so the sound becomes smaller and smaller.

Loudness is related to the amplitude of the generator, and the greater the amplitude, the greater the loudness.

Loudness is also related to the distance from the emitter, and the closer the distance, the louder it becomes.

No, but because the sound waves travel in all directions, there is a loss in propagation (air resistance, etc.), so you think it is small.

But distance is related to tone, which you will learn in high school, that is, the Doppler effect, which explains why we hear the sound of the train and feel different from each other, if you are interested, you can look it up for yourself.

You don't read the second year of junior high school physics books P12 and P9 by yourself, the sound waves travel far away, and the distance between the dense and dense ones will get bigger and bigger.

Relate. Loudness is determined by the amplitude and distance from the sound source.

1. The loudness of the sound is related to the amplitude of the emitter (the maximum distance of the object from the equilibrium position), and the greater the amplitude, the louder the louder.

2. The loudness of the sound is related to the distance from the sound emitter, and the farther the distance, the smaller the loudness. Substance: It is related to the concentration of sound waves, and the more concentrated the louder. If the sound wave is dispersed and the loudness is smaller, the sound is far away.

3. The loudness of the sound is related to the medium through which the sound wave is propagated. Under the same conditions, the loudness is generally different in different media.

Loudness is related to the amplitude of the emitter and the distance from the sound source. The greater the amplitude, the greater the loudness; The lower the amplitude, the less loudness. The closer you are to the emitter, the louder it becomes; The farther away from the emitter, the less loud it becomes. Loudness is also known as volume.

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.

Answer: The factor that determines the level of sound is frequency. The frequency of the vibration determines the pitch of the sound, the fast vibration, that is, the frequency is high, the pitch is high, and the vibration is slow, that is, the frequency is low, and the pitch is low. The amplitude determines the magnitude of the sound, and the amplitude is large, i.e., the vibration is loud.

Eat up the physical characteristics of sound – loudness and timbre.

1。Loudness is related to amplitude.

The greater the amplitude, the greater the loudness;

2。Loudness is related to the distance from the sound source.

The closer you are to the sound source, the louder it becomes.

3。The magnitude of loudness is related to how much the sound diverges.

The less the sound diverges, the louder it becomes.

Related to amplitude, the amplitude of human vocal cord vibration is large because of the large airflow exhaled from the lungs, and when the drum is vigorously beaten, the drum surface vibrates with a large amplitude, and the drum sound is louder.

It is related to the frequency and amplitude of the vibration, the greater the frequency and amplitude, the louder the sound, there are physics textbooks, you look for junior high school textbooks.

Amplitude, distance from the source of sound, concentration of sound.

The frequency and amplitude of the vibration of the sound source.

1., the relationship between loudness and amplitude: the greater the amplitude of the emitter, the greater the loudness; The smaller the amplitude, the smaller the loudness.

2. The relationship between loudness and distance: loudness is also related to the distance between the listener and the sound emitter, and the farther away from the sound emitter, the smaller the loudness.

3. The loudness of the sound is related to the degree of sound dispersion, the more concentrated the sound, the louder it is.

4. The loudness of the sound is also related to the subjective feeling of the human ear and whether the sound encounters obstacles during the propagation. The amplitude of the sound source, the so-called amplitude is the maximum distance that the object deviates from its original position when it vibrates, the greater the amplitude of the sound source, the louder the sound.