Question

if a meteor falls on the moon , can you hear it fall

Answer 1

No we'll not be able to hear the sound of the meteor crashing on the moon as since sound needs a medium to travel and space is vacuum. Therefore, we'll not be able to hear the sound from here (the earth).

Answer 2

If a meteor falls on the moon, we cannot hear it fall as there is no air. Sound needs a medium to travel.