Light travels faster than sound.
A typical lightning strike lasts for about 0.2 to 0.3 seconds.
In simple terms... light travels much faster than sound. We see the lightning flash first, followed by the sound when it finally reaches us
If the center of the storm is directly over you, the thunder and lightning occur simultaneously - and startlingly loudly. But most of the time, we see the lightning well before we hear the thunder because you see things instantaneously, due to the speed of light. But you hear things much more slowly. It takes five seconds for sound to travel a mile. Hence, if you see lightning, then hear the thunder ten seconds later, the center of the storm is two miles away.
Since light travels faster than sound, you can tell how many miles away a thunder storm is by counting. Lightning strikes. 5 seconds pass and you heard thunder. The thunder storm is 5 miles away.
You see lighting and hear thunder.
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.
then the lightning is 2.78 miles away from you.
There is a delay between seeing the lightning and hearing the thunder because the speed of light (lightning) is much faster than the speed of sound (thunder). Thus, you SEE lightning first, and then you HEAR thunder later.
5 miles away
A typical lightning strike lasts for about 0.2 to 0.3 seconds.
If you mean hearing thunder right after a lightning, it is because sound travels slower than light, and thus, you would hear the thunder a bit later than seeing a lightning strike.
If you hear the thunder almost at the same time as the lightning flash - the storm is directly overhead. Usually - the sound of thunder arrives a few seconds after the lightning, because light travels much faster than sound.
the lightning is roughly a mile away
lightning heats the air which we hear as thunder
In simple terms... light travels much faster than sound. We see the lightning flash first, followed by the sound when it finally reaches us
If the center of the storm is directly over you, the thunder and lightning occur simultaneously - and startlingly loudly. But most of the time, we see the lightning well before we hear the thunder because you see things instantaneously, due to the speed of light. But you hear things much more slowly. It takes five seconds for sound to travel a mile. Hence, if you see lightning, then hear the thunder ten seconds later, the center of the storm is two miles away.
Thunder is our name for the sound made by lightning. The reason there is (usually) a delay between when you see the bolt of lightning and hear the thunder is that light travels more quickly than does sound. This is the reason that you can count seconds between seeing lightning and hearing thunder to figure out how close the lightning is to you. When the lightning is closer to you, the sound doesn't take as much time to travel to your ears and thus the gap between the lightning and thunder is shorter. So you can't see thunder because it's merely a sound - but you can see the source of that sound.