Please design a small experiment to prove that the speed of sound propagation is related to temperature. Briefly write out the practical scheme, experimental phenomena and experimental conclusions.

You can tap a hot soldering iron to measure the speed of sound propagation, and then tap a cold soldering iron to measure the speed. It is concluded that the higher the temperature, the faster the sound travels.

The propagation speed of sound in different media is generally different, and it is faster in solid than in air;

Knock on one end of the long iron bridge and stick your ear on the long iron bridge at the other end, and you can hear two sounds;

This is because sound propagates through iron and air, and the time required for propagation is different.

Extended data:

In physics, sound is produced by the vibration of an object, and the object that emits sound is called a sound source. The number of times an object vibrates in one second is called frequency. The unit is hertz, and the letters are hertz. The human ear can hear the sound of 20~20000Hz, and the most sensitive is the sound of 200~800Hz.

The propagation speed of sound in different media is generally solid >: liquid > gas (except for cork 500m/s, less than kerosene (25℃) and distilled water (25℃). ), the speed of sound propagation is related to the type of medium and the temperature of the medium.

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