The speed of sound in air is approximately:
Correct answer: C. 330 m/s
- A. 1500 m/s
- B. 5000 m/s
- C. 330 m/s
- D. 50 m/s
Explanation
The speed of sound in air depends on several factors, such as temperature, humidity, and air pressure. At a temperature of 0 degrees Celsius and a pressure of 1 atmosphere, the speed of sound in dry air is approximately 330 meters per second or 1,080 feet per second. This means that sound waves travel at a speed of 330 meters per second through the air at this temperature and pressure. However, the speed of sound can vary depending on the conditions of the air through which it is traveling.
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Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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