How would the velocity of sound change on the moon?

Expert Solution

Answer :

The propagation of sound waves requires a material medium. The sound wave travels through a medium due to the collision between its constituent particles. The speed of a sound wave is basically determined by various properties of that medium such as density, elasticity, temperature, etc. Mathematically it can be described by relation below

where B is bulk modulus and is the density of the material. Bulk modulus define show dense a material is.

Usually, on earth speed of sound for solids are greater than for liquids than for gases.

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About moon , moons atmosphere is far thinner than earths atmosphere which has approximately 10¹⁹ molecules per cc whereas moon has 10⁶ molecules per cc. And those molecules almost never collide with each other hence moons atmosphere is as good as vacuum and can't transmit sound waves.

genius_generous answered 6 months ago

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