Why do you see lightning first and then listen to thunder when it rains?

In summer, thunder and lightning are common, and thunder is heard only a few seconds to a dozen seconds after the lightning has passed.

Lightning is an electrical spark produced when the charge generated by the cloud during its motion is discharged when it is discharged, and it is both light and sound. It's just that the light and sound in thunder and lightning are more powerful than the electric sparks we see in our lives.

The reason why lightning is seen first and then thunder is heard is because in the air, light travels fast and reaches the ground quickly, while sound travels slowly in the air and reaches the earth after a while. So you will hear the lightning first and then hear the thunder. In fact, lightning and thunder appear at the same time.

The reason for such a difference in the time it takes to reach the ground is that light travels 3,000,000 kilometers per second, while sound travels only one kilometer in the air. The speed of sound is only one-900,000th the speed of light.

Some lightning bolts are long, some are short, some are loud, and some are quiet. You can roughly judge the height of the clouds to the ground based on the time it takes for the sound to reach the ground. It doesn't take much time for the light to reach the ground, it can be considered 0, from seeing lightning to hearing thunder, how many seconds is the interval and multiplied by 340 meters, which is the distance from lightning to you.

Thunder is reflected when it encounters clouds or tall buildings, so it usually takes a while for a lightning bolt to disappear.

Because the eyes grow in front of the ears, hehe, it makes sense.

The scientific saying is that lightning and thunder occur at the same time because light travels faster than sound, so we see lightning first.

When it rains, you see lightning and then hear thunder.

The speed of sound propagation in the air is 340m s, the speed of light in the air is 300000000m s, lightning and thunder occur at the same time, the distance to the observer is equal, and the propagation time is determined by t=s v Light arrives first, sound arrives later.

So. When it rains, you see lightning and then hear thunder.

This is a physical problem because light travels much faster in the air than sound travels through the air.

Are you a child? Ask this kind of question, do you listen to cross talk too much?

Sorry, the attraction and repulsion of positive and negative ion clouds in the air will produce light and electricity at the same time, and light travels faster than sound, so you will see lightning first, and lightning is a luminous phenomenon.

Actually, lightning and thunder occur at the same time, except that lightning is light and runs very fast, while thunder is sound and runs much slower. Because the speed of light is 300,000 kilometers per second, it can circle the earth seven and a half times in one minute; And the speed of sound in the air is about kilometers per second.