1. What Is Speed Of Sound?

The speed of sound is the distance traveled per unit time by a sound wave as it propagates through an elastic medium. At 15 km altitude and approximately -75°C, the speed of sound is around 270 m/s.

2. How Does The Calculator Work?

The calculator uses the standard formula for speed of sound in air:

Where:

• \( v \) — Speed of sound (m/s)
• \( T \) — Temperature in Celsius (°C)

Explanation: The speed of sound increases with temperature as the air molecules move faster and transmit sound waves more quickly.

3. Importance Of Speed Of Sound Calculation

Details: Accurate speed of sound calculations are crucial for aviation, meteorology, acoustics, and various scientific applications where sound propagation is important.

4. Using The Calculator

Tips: Enter temperature in Celsius and altitude in kilometers. The calculator will provide the estimated speed of sound at the given conditions.

5. Frequently Asked Questions (FAQ)

Q1: Why does speed of sound vary with altitude?
A: Speed of sound varies primarily due to temperature changes with altitude. At higher altitudes, temperatures are lower, reducing the speed of sound.

Q2: What is the typical speed of sound at sea level?
A: At sea level with standard temperature of 15°C, the speed of sound is approximately 340 m/s.

Q3: How does humidity affect speed of sound?
A: Humidity has a minor effect on speed of sound. Moist air has a slightly higher speed of sound than dry air at the same temperature.

Q4: Why is speed of sound important in aviation?
A: Speed of sound is critical for calculating Mach numbers and understanding supersonic flight characteristics.

Q5: Does speed of sound change with air pressure?
A: Speed of sound is primarily dependent on temperature, not pressure, for ideal gases at moderate pressures.