very roughly 7000 feet
You can approximate how far lightning is from you by counting the seconds between when you see the lightning and when you hear the thunder. Seven seconds equal one mile.
No. The rule of thumb is there is a delay of 5 secondsbetween lightning and thunder for every mile of distance from the bolt.
The time difference between the flash of lightning and the sound of thunder tells you the approximate distance. The time between when the flash happens and when you see it is negligible, but the speed of sound is approximately a mile every 5 seconds. So if you count the seconds and divide by 5, that will give you the rough distance of the lightning.
count how many seconds are in between the lightning and the thunder( lightning then thunder). seconds represent either miles or hours...
Well the distance between you and where the lightning struck and you counted 5 seconds from the flash of lightning is about 1.055 miles
Count the seconds between the lightning and the following thunder. The amount of seconds is said to be approximate to the distance away in miles.
Because sound travels approximately one mile every five seconds, the thunder you heard indicates that the lightning bolt was approximately a mile away.
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.
Count the number of seconds between when you see the lightning flash and when you first hear the thunder. Sound travels at (about) 1100 feet per second, so very 5 seconds between the flash and the sound, represents one mile between you and the lightning strike.
Count the seconds between when the lightning flashes and the sound of the thunder. Divide the number of seconds that pass by five to get the distance in miles or by eight to get the number of kilometers. Note that this only gives you the distance to the bolt of lightning. The storm cell itself is probably at least a few miles across.
-- Count seconds between the flash of lightning and the thunder -- Divide by 5. -- The result is the number of miles between you and the lightning
Lighting always comes just before thunder because it is the heat of lightning that causes thunder. Lightning is seen when there is a discharge of atmospheric electricity in the clouds or between clouds and the ground. The energy from the lightning heats the air and causes a sudden expansion of the air (followed by a rapid contraction), which results in the sound called thunder. Since the heat of lightning causes the expansion that results in thunder, the lighting must come first. (see related link below) Because light travels faster than sound, an observer will normally perceive a delay between lightning and thunder. This delay increases with farther distance from the actual lightning strike. People will often count the seconds that pass after they see lightning until they hear the thunder. The shorter the time observed between the two, the closer the lightning is to the observer. - In English units, every 5 seconds of delay is about a mile in distance. - In metric units, every 3 seconds of delay is about a kilometer in distance.
For a long time it was thought by many people that the number of seconds after the lightning strikes is the miles the center of the storm is from you. Although this does show how light travels faster than sound, this system is wrong. The actual method for finding the distance the heart of the storm is from you is by counting after you see lightning; and stop counting after you hear the thunder. Now, for every five seconds after the lightning struck until you hear the thunder, it is one mile away. So if ten seconds go by between lightning and thunder, the center of the storm is two miles away.
Thunder can be heard up to about 10 miles away, but it can be much closer. One way to figure the distance is to measure the time between seeing the lightning and hearing the thunder. Divide the number of seconds by five and to get the approximate distance in miles.
roughly a mile
To tell you far away a thunderstorm is, count the seconds between the lightning strike and the clap of thunder. Thunder is the sound of lightning.
Count the time in seconds between a lightning flash and the thunder clap. Five seconds delay equals 1 mile in distance.
To estimate your distance from a thunderstorm count the number of seconds between a flash of lightning and the next clap of thunder. Divide your answer by 5. See the related link below.
Thunder - is the result of a lightning flash. The flash causes the surrounding air to move away from the source at 300 metres/second. An approximate calculation for the relationship between the lightning flash to hearing the thunder, is 5 seconds per mile.
First of all, thunder is a sound, you can't tell how far away it is until you hear it. I'm assuming that you meant "How do you know how far away lightning is?" One of the well known ways to tell is counting the # of seconds between when you see the lightning to when you hear the thunder. You can multiply the # of seconds that you count by 0.2 and you'll get the distance in miles. For every 5 seconds that you count, the bolt struck 1 mile further away. So if you counted 15 seconds between the time you saw the lightning you when you heard the thunder, that bolt was 3 miles away.
Sound waves travel one kilometer in 2.9 seconds (or one mile in 4.6 seconds). Therefore the lightning was probably about 1.75 kilometers (1 mile) away. It you have a more accurate record of the delay between the lightning flash and the corresponding thunder clap, you may be able to calculate the distance with greater precision. ~be me~
If it is a thunderstorm, you check how long it takes to hear the thunder after you see a lightning strike. For every five seconds, the lightning strike is about one mile away. The lightning causes the thunder, and the sound travels at a speed of about one mile per five seconds.
the lightning is roughly a mile away