Sound travels in the air on Earth, so if there is no air on the moon, is it impossible to hear sound

The most critical factor in the propagation of sound is to have a medium, which refers to all solids, liquids and gases, which is the premise for sound to be able to propagate. The physical parameters are related to the distance of the sound source from the observer, the vibration frequency of the sound source, and the propagation medium.

Because the polar regions are cold, the equators are hot, and the air in the polar regions is denser than at the equator, the sound in the polar regions travels faster than at the equator. In general, v solids v liquid v gas. So V Steel V Water V Air.

The propagation of sound requires matter, which is called a medium in physics.

On the Moon: vacuum 0m s (i.e. no propagation).

Astronauts speak by radio!

There's no air on the moon, but rocks can also send sound, but we don't. The sound from the Apollo moon landing was transmitted through electromagnetic waves, which converted the sound signal into electromagnetic waves, and then it was transmitted to the partner and the Earth, and it was converted into a sound signal.

Oh, yes! Sound can't be transmitted in a vacuum!

Sound is transmitted by some gases, liquids, and solids, and these substances as the medium of transmission are called mediums. Astronauts on the moon need to rely on radio even if they talk face-to-face, because there is no air on the moon and the vacuum cannot transmit sound

By: Woqin Butterfly - Vice President 11 9-9 12:37

Borrow someone's answer!

It can be communicated by radio or by placing a wooden strip on the skeleton under the human jaw to make use of bone conduction.

A sound wave is a mechanical vibration, and it needs a medium to propagate! On the moon, if you put your ears close to the moon, you can still hear sounds? The problem is that it is quite difficult to put the ears directly on the ground!

Yes, there is no medium for sound propagation, so there is no medium for sound propagation.

We live in the atmosphere, and we normally transmit sound through the air, but also in water, as long as there is a medium.

There's no air on the moon, but rocks can also send sound, but we don't. The sound from the Apollo moon landing was transmitted through electromagnetic waves, which converted the sound signal into electromagnetic waves, and then it was transmitted to the partner and the Earth, and it was converted into a sound signal.

That is true!

People on Earth can hear each other because there are many media such as air on Earth!

There is no air on the moon, and there is no medium for sound transmission, so it cannot be transmitted!

Therefore, when astronauts go to the moon, they contact each other's helmets and use helmets as a medium to transmit sound!

Of course, radio is the mainstream way of space propagation!

Yes.!To use the radio.

That's right, so when the United States landed on the moon, it relied on radio to speak, and electromagnetic waves did not need a medium to propagate, and no matter how close it was in a vacuum, it was inaudible to roar directly

OK. Transmitted by radio.

It's true that there is oxygen in the air, but it doesn't mean that only oxygen in the gas can transmit sound. In the same way, there is no oxygen on the moon, but it is not without other gases, so there should be no problem of transmission! Otherwise, how could information commands such as sound waves emitted by the earth be received (referring to satellites or something, there is no oxygen in space but there is hydrogen, and it can't be transmitted.)

Personal opinion!

Yes, but it can be communicated by radio.

Yes, astronauts are all radio talking.

The sound can be heard by radio, with the wire as the medium.

Not with radio in the spacesuit there is air.

Audible. ls

You're kidding.

Yes, there is a vacuum on the moon, so you can't hear sound. Astronauts transmit sound through radio waves.

There is no air on the moon, and astronauts who land on the moon cannot hear each other's speeches even if they are very close.

Hello, glad to answer for you. There is no air in space, and the sound of speech cannot travel through a vacuum, so you cannot hear each other when you stand on the opposite side; So the answer is: vacuum. Hope it helps. Have a great day!

Summary. People can't hear each other talking on the moon, because the sound of people talking is a kind of sound wave, and sound waves are transmitted by the air, and if there is no air on the moon, they can't be heard. On the moon, not only people can't hear each other, but also the sounds of objects colliding with each other.

In order to hear the voice of the other person, it is necessary to use radio communication equipment, because the propagation of electromagnetic waves does not depend on air and can propagate in a vacuum. The propagation of sound requires a medium, which can propagate in both gases and solids and liquids. Therefore, to hear sound on the moon, radio communication equipment is required.

Dear will be happy to answer for you.

People can't hear each other talking on the moon, because the sound of people talking is a kind of sound wave, and sound waves are transmitted by the air, and if there is no air on the moon, they can't be heard. Let the annihilation on the moon not only be inaudible when people talk to each other, but also the sound of objects colliding with each other. In order to hear the voice of the other person, it is necessary to use radio communication equipment, because the propagation of electromagnetic waves does not depend on air and can propagate in a vacuum.

The propagation of sound requires a medium, which can propagate in both gases and solids and liquids. Therefore, to hear the sound fiber Zen sound on the moon, you need radio communication equipment.

The Moon's weak gravity makes it unable to hold its atmosphere, because the light gas molecules scatter into interstellar space because the thermal motion speed is greater than the escape velocity when exposed to sunlight. So there is no medium for sound waves to propagate into. In other words, people can't hear anything on the moon, and everything is really quiet.

Even if two astronauts who landed on the moon shouted face to face, they couldn't hear each other. In order to solve the communication needs of the lunar surface, scientists will add radio communication devices to the spacesuits given to astronauts to the moon. To put it in layman's terms, it is equivalent to equipping each astronaut with a "walkie-talkie".

When an astronaut needs to communicate with another astronaut, he turns on the walkie-talkie, he speaks into the walkie-talkie, which converts the sound signal into an electromagnetic signal and sends it to the receiver. The propagation of electromagnetic wave signals is not constrained by the medium and can be done in a vacuum.

After the receiver receives the electromagnetic wave signal, it is decoded and restored to a sound signal and released, and the receiver hears the voice of his companion. Of course, although the process is one more step, the conversion process of "sound-electromagnetic wave-sound" in the device is very fast, so the two astronauts will not feel delayed when they are talking, just like we usually play **.

The surface of the moon is a vacuum, so sound cannot travel

So the answer is: the surface of the moon is a vacuum

If there is no medium to propagate sound, sound cannot be heard. Sound can travel in air, water, solids, because there is no air on the moon, and sound can only be heard by solids. So you can hear a little bit.

Of course, junior high school textbooks only say that vacuum can't transmit sound, but solid can.

The main reason is that the moon is in a vacuum and the amount of gas in the air is small, so you can't hear the sound.

Space is a vacuum environment, and sound cannot be transmitted in a vacuum environment, so you can't hear sound when you talk on the moon.

Because sound is transmitted by air, and there is no air on the moon, sound cannot be heard.

The Moon is in outer space, where there is no air and no other medium through which sound can be conducted.

Because there is no air on the moon, it is a vacuum environment, and there is no medium through which sound can be transmitted.

Because the moon is a vacuum environment, the vacuum cannot transmit sound, so it is naturally inaudible.

Because there is so little air on the moon, sound cannot travel in non-air conditions.

Because speaking requires a medium.,This is something that is only in junior high school.。

Because the Moon does not have the conditions to have the medium necessary for sound propagation.

A vacuum cannot transmit sound, so it cannot be heard on the moon.

Categories: Education, Science, >> Science & Technology.

Problem description: If it's good, the bounty will be raised.

Analysis: We live in a world of sound and color, the reason is that the space we live in is full of air, and the air can transmit sound, so we can hear the birds, the roosters.

There are solid sound propagation, liquid sound propagation, and gas propagation. The most prevalent thing in our daily lives is gas sound. The soil ** is the use of solid sound transmission fast.

And the fish can hear the footsteps of people on the shore is using the liquid can transmit sound, so as long as we are in the matter"Tristate"and we can hear the voice.

On the moon, there is no gas, no solids, and no liquids, and we call this environment where no matter exists in a vacuum.

Since the Moon is vacuum, there are no solid, liquid, or gaseous states in its vicinity. Without these substances, there can be no sound on the moon. Even on the ground it is not possible (two or more astronauts are wearing thick spacesuits, the transmission of sound is greatly hindered, we do not think that there is a sound), so on the moon (even if standing on the ground) it is necessary to talk by radio.