How do you measure the speed of sound in a classroom?
SPEED=DISTANCE/TIME. To work out the speed of the sound in metres per second, divide the distance in metres by the average time in seconds. For example 170 metres divided by 0.50 seconds = 340 m/s. You have calculated the speed of sound!
How do you solve for the speed of sound?
v=√γRTM. Note that the velocity is faster at higher temperatures and slower for heavier gases. For air, γ = 1.4, M = 0.02897 kg/mol, and R = 8.31 J/mol • K. If the temperature is TC = 20 °C (T = 293 K), the speed of sound is v = 343 m/s.
What is the speed of a sound?
If we consider the atmosphere on a standard day at sea level static conditions, the speed of sound is about 761 mph, or 1100 feet/second.
What instrument is used to measure the speed of sound?
A sound velocity probe is a device that is used for measuring the speed of sound, specifically in the water column, for oceanographic and hydrographic research purposes.
Can you identify the factors that affects the speed of sound?
The two factors that affect the speed of sound are the medium it is traveling through and the temperature of the medium.
How do you find the local speed of sound?
The equation for the speed of sound in air v=√γRTM v = γ R T M can be simplified to give the equation for the speed of sound in air as a function of absolute temperature: v=√γRTM=√γRTM(273K273K)=√(273K)γRM√T273K≈331ms√T273K.
What is the contributing factor for the speed of sound?
The speed varies depending on atmospheric conditions; the most important factor is the temperature. Humidity has little effect on the speed of sound, nor does air pressure by itself. Air pressure has no effect at all in an ideal gas approximation.
How do you calculate the speed of sound and temperature?
Speed of sound c ≈ 331.3 + (0.6 × ϑ) in m/s. That gives e.g. at a temperature of ϑ = 20°C a speed of sound of: c ≈ 331.3 + (0.6 × ϑ) = 331.3 + (0.6 × 20) = 343.3 m/s….
| Temperature ϑ (theta) °C | ↔ | Speed of sound v m/s |
|---|---|---|
| Frequency f Hz | ↔ | Wavelength λ m |
Why does sound have a speed?
Sound is a wave that propagates by making neighbouring particles interact with one another, so its speed depends on the density of a material and how the atoms within it are bound together. Atoms can only move so quickly, and the speed of sound is limited by that movement.
What happens at speed of sound?
When the object reaches the speed of sound, air cannot readily move out of the way and a shock wave is formed. When the object is moving faster than sound, the resulting sounds travel behind the object, creating a sonic boom.