Home
Back
Speed of Sound Equation:
| From: | To: |
The speed of sound equation calculates how fast sound travels through air based on temperature. The formula v = 331 + 0.6T provides an approximation where 331 m/s is the speed of sound at 0°C and the speed increases by approximately 0.6 m/s for each degree Celsius increase in temperature.
The calculator uses the speed of sound equation:
Where:
Explanation: The equation shows that sound travels faster in warmer air because the molecules move more rapidly and can transmit sound vibrations more quickly.
Details: Calculating the speed of sound is important in various fields including meteorology, aviation, acoustics, and audio engineering. It helps in determining sound propagation, designing concert halls, and understanding atmospheric conditions.
Tips: Enter the temperature in degrees Celsius. The calculator works for temperatures above absolute zero (-273.15°C).
Q1: Why does temperature affect the speed of sound?
A: Sound travels faster in warmer air because the air molecules have more kinetic energy and can transmit sound vibrations more quickly.
Q2: Does humidity affect the speed of sound?
A: Yes, humidity has a small effect on the speed of sound, but this simple equation doesn't account for it. The effect is relatively minor compared to temperature.
Q3: What is the speed of sound at room temperature?
A: At typical room temperature (20°C), sound travels at approximately 343 m/s (331 + 0.6×20 = 343 m/s).
Q4: Does this equation work for other gases?
A: No, this specific equation is for dry air. Different gases have different molecular weights and properties that affect sound propagation.
Q5: How accurate is this equation?
A: This provides a good approximation for most practical purposes, though more complex equations exist that account for humidity and other factors.