The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 metres per second (
1,125 ft/s
; 1,235 km/h; 767 mph; 667 kn), or one kilometre in 2.9 s or one mile in 4.7 s.
What is the speed of sound under normal conditions?
At sea level, at a temperature of 21 degrees Celsius (70 degrees Fahrenheit) and under normal atmospheric conditions, the speed of sound is
344 m/s
(1238 km/h or 770 mph).
How fast does a soundwave travel?
Sound can travel in air at approximately
332 metres per second
. This is fast but not nearly as fast as light which travels at 300 000 kilometres per second. This difference in speeds enables us to appreciate that sound does take time to travel.
What conditions does a sound wave travel fastest?
Solids: Sound travels fastest
through solids
. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.
Does sound travel at constant speed?
The speed of sound is constant
in the same sense that the mass of an object is constant.
How fast does sound travel through concrete?
| Solid Speed of Sound (m/s) | Longitudal Shear | Concrete 3700 3200 | Constantan 5177 2625 | Copper, annealed 4760 2325 |
|---|
What is the speed of sound at 35000 feet?
At 35,000 feet, the cruising altitude of a typical passenger jet, sound travels at about
660 mph
(1,062 kmph).
What is the speed of sound of an aircraft Travelling at 40000 ft?
| Altitude Speed of Sound | Feet (ft) Meter (m) mph | 35,000 10668 660.7 | 40,000 12192 659.8 | 45,000 13716 659.8 |
|---|
How fast is the speed of sound underwater?
Sound travels faster in water than in air. The speed of sound in air under typical conditions is about 343 meters per second, while the speed of sound in water is about
1,480 meters per second
.
When did the sound travel fastest slowest?
The speed of sound depends on the medium in which it is transported. Sound travels
fastest through solids, slower through liquids and slowest through gases
.
How fast does sound travel if the air temperature is 20c?
At 20 °C (68 °F), the speed of sound in air is about
343 metres per second
(1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or one kilometre in 2.9 s or one mile in 4.7 s.
How fast does sound travel through water and air?
There are about 800 times more particles in a bottle of water than there are in the same bottle filled with air. Thus sound waves travel much faster in water than they do in air. In freshwater at room temperature, for example, sound travels about
4.3 times faster than it does in air at the same temperature
.
How far can sound waves travel?
The speed of the sound wave is 340 m/s. The distance can be found using d = v • t resulting in an answer of
25.5 m
.
What affects the speed of sound as it travels faster?
The speed of the sound depends on
the density and the elasticity of the medium through which it travels
. In general, sound travels faster in liquids than in gases and quicker in solids than in liquids. The greater the elasticity and the lower the density, the faster sound travels in a medium.
Which of the following sound travels the fastest?
The correct answer is Solid.
In solid the speed of sound is maximum
. Sound requires a medium to travel, therefore it cannot travel through a vacuum. Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases.
Are shock waves faster than sound?
In particular,
shock waves travel faster than sound
, and their speed increases as the amplitude is raised; but the intensity of a shock wave also decreases faster than does that of a sound wave, because some of the energy of the shock wave is expended to heat the medium in which it travels.
Do sound waves travel fastest in solids?
Sound waves can be described by the wavelength and frequency of the waves.
Sound travels more quickly through solids than through liquids and gases
because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster.
Does noise travel through walls?
The sound transfer occurs as a result of airborne noise
(voices, music, etc). The airborne sound wave strikes the wall and the pressure variations cause the wall to vibrate. This vibrational energy is transferred through the wall and radiated as airborne sound on the other side.
How does sound travel through floors?
Sound travels through the structure
as a vibration
. The sound is a wave of energy, and as it hits the structure it is turned into a vibration. That vibration makes its way through all of the hard surfaces that come in contact with each other and come out the other side as an airborne sound.
Can sound waves travel through a vacuum?
Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that
they cannot travel through empty space
, where there are no atoms or molecules to vibrate.
Can a 747 break the sound barrier?
The 747-100, for instance, was tested up to Mach 0.99, almost breaking the sound barrier
. Other 747s, such as Air Force One, have approached the sound barrier but never crossed it.
How fast is Mach 1 at sea level?
The speed of sound (Mach 1) varies with altitude and temperature. If an aircraft is travelling at the speed of sound at sea-level then its speed will be
661 knots
(760 miles per hour) or if it is travelling at the speed of sound at 30,000 feet then its speed will be 589 knots (677 miles per hour).
How fast does sound travel if the air temperature is 200 Celsius?
| Temperature – t – ( o C) Speed of Sound – c – (m/s) | 90 381.7 | 100 386.9 | 200 434.5 | 300 476.3 |
|---|
What is the speed of sound at 85000 feet?
The SR-71 cruised at
Mach 3.2
, more than 2,000 mph, around 85,000 feet.
What is the sound barrier at 40000 feet?
In other words, Mach 2 at sea level is a greater number of miles per hour (or kilometers per hour) than Mach 2 at 30,000 feet, which is a greater number of miles per hour than
Mach 2
at 40,000 feet. When an aircraft reaches Mach 1, it is said to “break the sound barrier.”
What speed is Mach 1 at 40000 feet?
| ALTITUDE SPEED OF SOUND | Feet (ft) Meter (m) mph | 30,000 9144 678.1 | 35,000 10668 660.7 | 40,000 12192 659.8 |
|---|
