Question

Very short answer questions. (One word)
1.
The medium in which the sound travels fastest.
2. Cause for any sound produced.​

Answer 1

Answer:

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1. Sound waves travel faster and more effectively in liquids than in air and travel even more effectively in solids. This concept is particularly hard to believe since our general experiences lead us to hear reduced or garbled sounds in water or behind a solid door.

2. Sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) ... Vibrations in air are called traveling longitudinal waves, which we can hear. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively.

Explanation:

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Answer 2

Answer:

vaccum and air

mechanical vibrations