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The Velocity of Sound in Any Medium

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-199

2025-11-13

503

is directly proportional to the square root of the elasticity of the medium, and inversely proportional to the square root of its density. By using a proper numerical value for elasticity (Formula 1), the velocity of sound can be calculated from the equation

The velocity of sound in air is increased by a rise in temperature, chiefly because heat causes air to expand, and thus decreases its density.