Question

Can sound travel through a vacuum?

Answer 1

1. Sound is a form of energy that is produced when a body vibrates.
2. The particles of the medium do not leave their position but vibrate about their mean position.
3. Sound is a type of mechanical wave that needs a medium for propagation. Only electromagnetic waves can travel through the vacuum.
4. A astronaut cannot hear another person on the moon because the moon has no atmosphere or medium for the propagation of sound waves.