Your estimate of 5 seconds per mile is the one I always use during a storm. Let's see how it stacks up:
1 mile = 5,280 feet
1 mile / 5 seconds = 0.2 mile per second = (0.2 x 5,280) = 1,056 feet (321.9 meters) per second.
The speed of sound at standard temperature and pressure is listed as 343 m/s. So the result of 321.9 might be disappointing, but really now, who knows what it is in the middle of a thunderstorm !
A quick rule of thumb is 5 seconds. Since sound travels at a little over 1000 feet per second which is about a fifth of a mile. A better estimate is 1125 feet per second. 5280 / 1125 = 4.693 seconds
By way of some "round" math, (rounding quotients to the nearest whole numbers), I have extrapolated 5 seconds as a decent "Rule of thumb". Thunder will go *approximately* 1 mile every 5 seconds, at average. Humidity, elevation, etc. affect air density, which affects the speed of sound, but negligibly for this answer. So, see the flash, count 5, 1 mile (approximately).
You don't see thunder. You hear thunder. You hear thunder after seeing the lightning because light travels faster than sound. The further the storm away is, the bigger the time between when you see the lightning and hear the thunder.
The approximate distance of a thunderstorm can be calculated by counting the number of seconds between the flash of lightning and the sound of thunder and dividing by 5. Since sound travels at about 1,100 feet per second, a three-second delay indicates the thunderstorm is approximately 2,200 feet away, or about 0.42 miles.
A lightning strike is about 1,100 feet away if you hear the thunder one second after the lightning flash. The distance varies somewhat with temperature, air pressure, and other environmental conditions.
Very close to 5 seconds.
Thunder is the sound of lightning, because lightning moves faster then sound it takes a few seconds for the sound to catch up. So there is no sound of thunder, thunder is just the sound of lightning.
It would take approximately 4.55 seconds for the sound of thunder to travel 1500 meters at a speed of 330 meters per second. This is calculated by dividing the distance by the speed of sound.
A quick rule of thumb is 5 seconds. Since sound travels at a little over 1000 feet per second which is about a fifth of a mile. A better estimate is 1125 feet per second. 5280 / 1125 = 4.693 seconds
How much time would it take for the sound of thunder to travel 2000 meters if sound travels a speed of 330 meters per sec.
This is because light travels faster than sound. Light travels so quickly that when a bolt of lightning occurs, you see it immediately. Sound moves at a few hundred miles per hour, meaning that it will usually take a few seconds for the thunder to reach you unless the lighting bolt was very close.
Thunder is the sound of lightning, because lightning moves faster then sound it takes a few seconds for the sound to catch up. So there is no sound of thunder, thunder is just the sound of lightning.
Light is virtually instantaneous over any distance you'd be aware of a thunderstorm going on. Sound, however, takes five seconds to travel through air for each mile. If the thunder and the lightning are simultaneous, the lightning strike is very close to you. If the thunder is five seconds after the lightning, the lightning was one mile away. If the thunder is ten seconds after the lightning, the lightning was 2 miles away, and so on.
You can tell that sound waves and light waves travel at different speeds during a thunderstorm by observing the delay between seeing lightning and hearing thunder. Light travels much faster than sound, so the lightning is seen almost instantly while the thunder takes longer to reach you. This delay in the arrival of sound waves compared to light waves demonstrates their different speeds of travel.
Easily, the speed of sound is approx 340 metres per second, so it should travel approx 1,700 metres in 5 seconds.
NO they can not travel faster than sound in thunder and lightning
During a thunderstorm, lightning creates a rapid expansion of air known as thunder. This creates shock waves that travel through the air as sound waves to reach the observer's ear. The sound waves propagate in all directions, bouncing off surfaces and eventually reaching the observer.