Physics · Wave Motion and Sound

The correct answer is that the sound will not be heard. Sound waves are mechanical waves that require a medium (such as air, water, or solids) to travel. Since the space between the moon and Earth is a vacuum, there are no particles to transmit sound waves. Therefore, the sound of the explosion on the moon cannot reach Earth. The other options incorrectly suggest that sound could be heard after a certain time, which is not possible due to the lack of a medium in space.

Sound waves cannot travel through the vacuum of space because there is no medium to carry the sound vibrations from the moon to Earth.

This option is incorrect because sound cannot travel through space in a vacuum, so it cannot be heard at any time after the explosion.

This is incorrect. Sound waves cannot propagate through the vacuum of space; therefore, they will not reach Earth at any time.

Sound waves require a medium to travel. In the vacuum of space, there is no medium, so the sound from the explosion cannot be heard at any time.