Speed of Sound Formula:
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Definition: This calculator estimates the speed of sound in air based on temperature using a standard approximation formula.
Purpose: It helps in physics, engineering, and meteorology to determine how fast sound travels through air at different temperatures.
The calculator uses the formula:
Where:
Explanation: The base speed of sound (331 m/s at 0°C) increases by 0.6 m/s for each degree Celsius rise in temperature.
Details: Knowing the speed of sound is crucial for acoustic design, sonar systems, aviation weather calculations, and many physics experiments.
Tips: Simply enter the air temperature in Celsius. The calculation works for typical atmospheric conditions near sea level.
Q1: Why does temperature affect sound speed?
A: Sound travels faster in warmer air because molecules move more quickly and transmit vibrations more efficiently.
Q2: Is this formula exact?
A: It's an approximation. More precise formulas account for humidity and atmospheric pressure.
Q3: What's the speed of sound at room temperature (20°C)?
A: Approximately 343 m/s (331 + 0.6×20 = 343).
Q4: Does this work for temperatures below 0°C?
A: Yes, the formula works for sub-zero temperatures (result will be less than 331 m/s).
Q5: How does altitude affect the speed of sound?
A: While temperature is the primary factor, altitude affects air density which can have secondary effects.