Because there's no air ! They have to communicate by radio.
Sound is a compression/rarefaction wave in a material, such as air. There is no such thing on the moon.
Sound waves travel via vibrating molecules in air or other materials (water for example). On the Moon there is no atmosphere and as such nothing for sound waves to travel in.
They wouldn't be able to talk with there helmets off
The Moon has no atmosphere, only vacuum. There is nothing for the sound waves to travel in.
Astronauts cannot hear each other on the moon due to the lack of air and atmosphere, which are necessary for sound to travel. Sound waves need a medium to propagate, and in the vacuum of space, there is no medium for sound to travel through. While astronauts can communicate through radios inside their helmets, they cannot rely on sound to transmit through the lunar environment.
because there is no sound in space and sound cannot travel through vacuum
On the moon, there is no atmosphere to carry sound waves, so there is no medium for the sound to travel through and reach the other person's ears. As a result, sound cannot propagate in the same way it does on Earth, and communication through sound would not be possible between two individuals on the moon.
Sound cannot travel in the vacuum of space because there is no air or medium for the sound waves to travel through. However, astronauts can communicate on the moon using radio systems and equipment inside their helmets that allow them to hear each other.
Because it is in space, and their isnt really sound in space
You can't breed a Sun Dragon with a Moon Dragon because they are not compatible.
No, sound cannot travel through the vacuum of space, so you would not be able to hear any sound your friend makes on the moon. Sound requires a medium, such as air, to travel through, and the moon does not have an atmosphere like Earth.
Sound can't be heard on the moon because sound need a medium to travel and particles to collide each other in order to travel. since in a vaccum (space) you do not have air, meaning no particles, sound can't be heard on the moon.