If you see a lightening bolt, then count 4 seconds until you hear thunder, about how far away was the lightening strike?
4 seconds time the speed of sound. You should look that up.
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To determine the approximate distance of a lightning strike, you can use the speed of sound as a reference. Sound travels at a speed of approximately 343 meters per second (or 1,125 feet per second) in dry air at room temperature.
When you observe lightning, the time it takes for the sound of thunder to reach you can be used to estimate the distance between you and the lightning strike. Since sound travels slower than light, there will be a delay between seeing the lightning and hearing the thunder.
In this case, counting 4 seconds until you hear the thunder indicates that the sound traveled a distance that took about 4 seconds to cover. To estimate the distance, multiply the speed of sound (343 meters per second) by the time it took (4 seconds):
Distance = Speed of sound × Time
Distance = 343 meters/second × 4 seconds
Distance ≈ 1372 meters (or approximately 0.85 miles)
So, in this scenario, the lightning strike was approximately 1372 meters (or about 0.85 miles) away.