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 far will a sound wave travel in 2 seconds?
speed = distance/time
If a sound wave were observed to travel a distance of
700 meters
in 2 seconds, then the speed of the wave would be 350 m/s. A slower wave would cover less distance – perhaps 660 meters – in the same time period of 2 seconds and thus have a speed of 330 m/s.
What is the speed of sound in 1 minute?
Speed of sound in the air. But this speed varies between
295-340 m/s
depending on the air temperature and pressure.
How long does it take for sound to travel 1 km?
As you can see, the speed of sound changes depending on the temperature and the humidity; but if you want a round number, then something like 350 meters per second and 1,200 feet per second are reasonable numbers to use. So sound travels 1 kilometer in roughly
3 seconds
and 1 mile in roughly 5 seconds.
Is lightning faster than sound?
Lightning and thunder happen at the same time. But you see lightning before you hear thunder because
light, which travels a million times faster than sound
, arrives almost instantly. Sound, on the other hand, takes about five seconds to travel one mile.
How far can a human voice travel?
The normal intelligible outdoor range of the male human voice in still air is
180 m (590 ft 6.6 in)
. The silbo, the whistled language of the Spanish-speaking inhabitants of the Canary Island of La Gomera, is intelligible under ideal conditions at 8 km (5 miles).
What's the furthest sound can travel?
Travelling at the speed of sound (
766 miles or 1,233 kilometers per hour
), it takes a noise about 4 hours to cover that distance. This is the most distant sound that has ever been heard in recorded history.
How far is sound in 15 seconds?
If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds =
3 miles
, 0 seconds = very close.
Where does sound travel fastest?
Sound waves can only travel through a solid, liquid or gas medium. They travel fastest
in solids
, then liquids and slowest in gases.
Do all sounds travel at the same speed?
The speed of sound is not always the same
. Remember that sound is a vibration of kinetic energy passed from molecule to molecule. The closer the molecules are to each other and the tighter their bonds, the less time it takes for them to pass the sound to each other and the faster sound can travel.
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 |
|---|
How long does it take for sound to travel 100 km?
| Kilometers Per Hour Speed Of Sound | 90 km/h 0.072886 sound | 100 km/h 0.080985 sound | 200 km/h 0.16197 sound | 300 km/h 0.242954 sound |
|---|
How fast does light travel?
Light from a stationary source travels at
300,000 km/sec
(186,000 miles/sec).
How fast does light travel in a vacuum per second?
The speed of light traveling through a vacuum is exactly
299,792,458 meters (983,571,056 feet) per second
. That's about 186,282 miles per second — a universal constant known in equations as “c,” or light speed.
What is the fastest thing in the universe?
Light
travels about 186,270 miles (more than seven times the circumference of Earth) in one second. In modern physics, light is regarded as the fastest thing in the universe, and its velocity in empty space as a fundamental constant of nature.
Does bullet travel faster than sound?
When bullets fly through the air, they do so at amazing speeds. The fastest bullets travel more than 2,600 feet per second. That's equivalent to over 1,800 miles per hour. To put that in perspective, it's amazing to realize that
bullets travel over twice the speed of sound
!
How fast is a thunder?
When lightning strikes, a noise is made which we call thunder. Thunder travels much slower, at the speed of sound, about
1088 feet per second
. It takes sound about 5 seconds to travel one mile. You can observe this for yourself.
Is throwing your voice a real thing?
The actual practice of throwing your voice is also known as the “distant effect” because it makes your voice sound as though it comes from a distance
. In order to throw your voice, you will need to rely on the pressure that comes from squeezing a large amount of air out through narrow passageways.
Can sound travel forever?
First, let's think about why
sound does not travel forever
. Sound cannot travel through empty space; it is carried by vibrations in a material, or medium (like air, steel, water, wood, etc). As the particles in the medium vibrate, energy is lost to heat, viscous processes, and molecular motion.
How far can a scream travel?
On Earth, the sound from an average scream might travel about
three-quarters of a mile
, depending on conditions.
What made Krakatoa so loud?
Originally Verbeek thought that Krakatoa was so fierce because
sea water flooded into the volcano, reacting with molten lava
; the build-up of pressure from the resulting steam would have led to an enormous blast.
How loud is Krakatoa?
The pressure wave generated by the colossal third explosion radiated out from Krakatoa at 1,086 km/h (675 mph). The eruption is estimated to have reached
310 dB
, loud enough to be heard 5,000 kilometres (3,100 mi) away.
Why can sound not travel through empty space?
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
.
How far does thunder travel?
Thunder can be heard
up to 25 miles
away, and lightning strikes have been documented to occur as far as 25 miles from thunderstorms – known as a “bolt from the blue.” So if you can hear thunder, you're close enough to be hit by lightning, and sheltering indoors or in an enclosed car is your safest bet.
How far away is the storm?
After you see a flash of lightning, count the number of seconds until you hear the thunder. (Use the stop watch or count “One-Mississippi, Two-Mississippi, Three-Mississippi,” etc.)
For every 5 seconds the storm is one mile away
. Divide the number of seconds you count by 5 to get the number of miles.
How far is lightning from KM?
If you want to know approximately how far away is lightning in miles, divide the number of seconds by 5, for kilometers
divide the seconds by 3
. It will give us 3 miles or 5 kilometers. Or simply use our lightning distance calculator, which can calculate it more accurately at a speed of light!
