Why do lightning and thunder occur at the same time?

That's a good question, and a lot of people don't know it very well.

First of all, look at the occurrence of thunder and lightning: it is not the result of "clouds touching clouds", but with two kinds of ( , when the clouds with different charges are close to a certain distance, the air between the clouds is broken down by the electric field formed by the charge (the charge conducts electricity through the air, and a large current flows through the air in an instant, producing a discharge spark lightning; At the same time, the air being broken down expands sharply by the sparks generated when a large electric current flows through it** (similar to a firecracker**), which is called thunder.

To sum up: it can be seen that thunder is formed by the expansion of the air at the same time as lightning. Note "at the same time".

Another: lightning and thunder are not "a kind of thing". Although it occurs at the same time in the discharge process, one is the spark of discharge; And the other is the ** sound produced by the expansion of the air.

**It is not necessarily the inevitable product of a spark, such as the sound of a balloon ** is not caused by a spark).

Lightning is thunder.

They're actually a thing.

But what we saw was lightning.

It was thunder that was heard.

Different objects are called differently.

Can you tell you see the thunder.

Thunder and lightning occur at the same time, but lightning is the light that travels very quickly, and thunder is the sound that propagates slowly, so the lightning is seen first, and then the thunder is heard.

Lightning and thunder are both caused by cloud discharges, and of course they occur at the same time

Because thunder and lightning are generated by the collision of positive and negative charged ions in the cloud at the same time, but because the speed of light is faster than the speed of sound, it makes people think that lightning is faster, but in fact, it happens at the same time!

Because that's a mass discharge.

There will inevitably be sparks and popping sounds when discharging.

Remember that lightning and thunder are created by the collision of clouds! Just like two stones colliding, sparks and sounds are produced at the same time, lightning is sparks, and thunder is sound, so lightning and thunder are produced at the same time!!

Because lightning is seen and thunder is heard.

When clouds are discharged, energy produces light and vibration at the same time.

They are all created as a result of collisions between clouds.

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.

They're the same thing, they must be happening at the same time.

Lightning and thunder occur at the same time, but the speed at which they propagate through the atmosphere varies greatly, with lightning traveling at the speed of light – 300,000 km/s and thunder at the speed of sound – 340 m/s. Therefore, people always see lightning before they hear thunder. According to this phenomenon, we can calculate the distance from us from the time we see the lightning to the time when we hear the thunder.

If lightning is in the northwest and thunder is heard every 10 seconds, it means that the thunderstorm is about 3,400 meters away.

The reason why there is lightning and then thunder is because in the air, light travels faster than sound. In fact, lightning and lightning occur at the same time, but the speed of light is 300,000 kilometers per second, while the speed of sound is only about 340 meters per second. It can be seen that sound travels slower than the speed of light.

So when thunder strikes, you will see lightning first, and then you will hear thunder. Sometimes the thunder drags on for a long time, which is caused by clouds, mountain peaks and the ground reflecting the thunder back and forth.

When it rains, some of the clouds in the sky are positive and some are negative. When two clouds collide, lightning strikes, and at the same time emits a lot of heat, heating and expanding the surrounding air. The air that is heated and expanded in an instant will push the surrounding air, causing a strong **-type vibration.

This is thunder.

The formation of thunderstorm clouds generally requires two conditions, sufficient water vapor and violent convective movements. In winter, due to the cold and dry air and weak solar radiation, convection is not easy to form in the air, so thunder and lightning are rare. However, sometimes thunderclouds are formed in winter when the temperature is high, and thunder and lightning are generated, and rain and snow occur.

During thunderstorms, thunderstorms and lightning, do not dial and answer, and unplug the wire. Mobile phones can be used normally, but generally try not to receive mobile phones outdoors or indoors near windows. During thunderstorms and lightning, do not turn on TVs, computers, VCDs, etc., and unplug all power plugs to avoid injury and damage to electrical appliances.

When the thunderstorm is heavy, stay away from the trees, try not to run in stride, and choose buildings to take shelter from the rain.

Thunder is produced by the friction of positive and negative charges between clouds and between clouds and ground in the great concealment of void qi and macro volatile, resulting in violent discharge; Lightning is a phenomenon of intense electrical discharge between clouds, between clouds and the ground, or between parts of the cloud.

Thunder is when atmospheric charges are constantly gathering in the clouds. If the amount of charge becomes strong enough, lightning will occur. When lightning crosses the sky, it can quickly warm up the air along its path.

The heated air expands rapidly and rushes in all directions as violently as it happens. This causes a huge sound wave, which produces thunder.

Lightning usually produces an electric charge from a storm hall cloud (cumulonimbus cloud), with a negative charge at the bottom and a positive charge at the top, and also a positive charge on the ground, which follows the cloud like a shadow. Positive and negative charges attract each other, but air is not a good conductor. Positive charges run towards trees, hills, the tops of tall buildings, and even on top of the human body in an attempt to meet negatively charged cloudsThe negatively charged branch-like antennae stretch downward, getting closer to the ground as they go downward.

A bright flash of light is produced, which produces lightning.

The basic type of lightning

The most common lightning bolts are line lightning, which are very bright lines of white, pink, or light blue, much like a river with many branches on the map, or a large tree hanging in the sky. The "temper" of linear lightning has long been understood by scientists, and the whole process of linear lightning can be completely recorded with a continuous high-speed camera, and simulation experiments can be successfully carried out in the laboratory.

In addition to linear lightning, there are also ball lightning and chain lightning, both of which are relatively rare. Ball lightning is usually seen during severe thunderstorms. After the lightning bolt, a fireball suddenly appears in the sky, and the fireball floats in the sky along a curved path, and sometimes it may stop and hang in the air.

The above content reference: Encyclopedia - Lightning.