Question

what will happen to the speed of sound if you play a guitar during a hot day?​

Answer 1

Answer:

Most materials, including guitar strings, shrink with cold. That means more tension and thus higher pitch. Of course, the guitar itself will shrink with cold too, but not as fast as the strings, because it has more mass and insulates better (being wood). Thus, what you will generally have, in the way of immediate tuning changes (there might be longer term effects also) is that as the guitar and strings cool down, you will first get higher pitch, then lower (as the wood shrinks). Warming up again, you will get lower pitch, then higher again.

Explanation:

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Answer 2

Speed of sound by guitar strings during hot days will have a lower pitch.

Speed and Temperature relation:

• The speed of sound is dependent on temperature and humidity in a given situation.
• Sound passes swiftly through hot air as it is less dense and passes slowly through the cold air.
• Guitar strings and a few other materials shrink when kept in a cold environment and expand when kept at hot temperature. Therefore, there is a difference in sound due to thermal expansion or thermal compression.

Explanation:

In the case of hot day, the temperature is high. This leads to expansion of guitar strings. Further it leads to loosening of string giving a lower pitch.

Hence, the speed of sound by guitar strings during hot days will have a lower pitch.

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