Speed of sound
Sound travels through sound waves. A vibrating object transmits its vibration to neighboring molecules or particles. There is a transfer of motion from one particle to another, which results in the appearance of a sound wave.
The means of propagation of sound waves can be made of various materials: wood, air, water; therefore, the speed of propagation of sound waves must be different. If we talk about the speed of sound, we must ask ourselves: in what environment? The speed of sound is a characteristic of the medium in which the wave propagates.
The speed of sound in air is about 335 m / s. But this is at a temperature of 0 ° C. With an increase in temperature, the speed of propagation of sound also increases.
Sound travels faster in water than in air. At a temperature of 8 ° C, the speed of its propagation is about 1435 m / s, or about 6 thousand km / h. In metal, this speed reaches about 5,000 m / s, or 20,000 km / h.
