In a thunderstorm, are we the first to notice lightning or thunder? Why?

During a thunderstorm, the thunder is always seen first after the thunder, and then the thunder is heard, the main reason is that the lightning speed in the air is 299792458 meters faster, the propagation speed of the sound is slow, and the propagation speed of the sound in the air is about 340 meters and seconds, so it is said that the thunder that is heard after the lightning is seen first.

I must have seen the thunder and lightning first and then heard it. Actually, if you're in very, very close to the thunder and lightning, and you look at it, then you can hardly feel the time difference between the two of them. But it's not the same when you're far away.

The lightning you see is actually lightning, and the light reaches your eyes. The thunder you hear is actually the sound of lightning, and the sound waves travel to your ears. Then light travels much faster in the air than sound waves travel through the air.

So you definitely see the lightning first and then hear the thunder, because the light travels so fast in the air that it is practically negligible. So if you want to estimate how far away a lightning bolt is from you, you can start the technique directly from the time you see the lightning. Then wait until you hear the thunder and see how many seconds have passed.

Then multiply the number of seconds by the speed at which the sound travels through the air, and you can calculate how far away the lightning was at that time.

Of course, I saw the lightning first, and then I heard the sound. It's common sense of life.

Lightning is light, which travels at the speed of light, 300,000 kilometers per second. Sound is a sound frequency wave, much slower than the speed of light. Only 340 meters per second.

During a thunderstorm, we see lightning first, and then we hear thunder. Because the speed of light is faster than the speed of sound.

Thunderstorms: Generally, we see lightning first, and then I hear thunder. Because light travels much faster than sound. But this is not necessarily the case in real life, because sometimes the lightning is obscured by dark clouds and the lightning is not visible. Hope.

During thunderstorms, we usually see lightning first and then hear thunder, because light travels faster than sound.

In a thunderstorm, the first thing we observe is lightning, and then we hear thunder, because the speed of light is fast and the speed of sound is slow, so we see light first and then hear thunder.

Light and sound are both waves, and the speed of light is faster.

When I was a child, I had this problem, of course, because I first perceived lightning, because my eyes were in front of my ears.

Lightning, the speed of light is faster than the speed of sound.

Preface: In thunderous and rainy weather, we always see lightning in the sky first, and then hear thunder, so most people think that lightning strikes first and then thunder. In fact, lightning and thunder occur at the same time, but the speed at which they travel through the atmosphere varies greatly. <>

The light of lightning can travel about 300,000 kilometers per second, but thunder can only travel 340 meters, so many people will see lightning first and then hear thunder. If we don't hear thunder when we see lightning, it may be because the discharge clouds are too far away from us, and the thunder is not loud enough, and it will be consumed in the process of propagation, and the sound will become smaller and smaller, so many people can't hear the thunder completely when they see lightning. Light travels very fast in the air, reaching the ground very quickly, but sound travels very slowly in the air.

Lightning can be long and short, and thunder can be loud and small. <>

The height of the clouds to the ground can be judged by the time it takes for the lightning to reach the ground, and it does not take much time for the light to reach the ground because the speed is very fast. If you want to know how far the lightning is from you, you can calculate the time it takes to hear the thunder after seeing the lightning and multiply it by 340 meters to calculate the distance from the lightning to you. On a rainy day.

If the lightning in the sky is particularly strong, you must remember to stay away, if you are not careful, you may be struck by lightning. <>

After all, there are many similar incidents on the news, and you must not hide under the tree on a rainy day, so that if you are in a thunderous weather, you may be electrocuted, so in daily life, if the rain is particularly heavy, and accompanied by thunder and lightning, you must avoid it in time to avoid being injured by mistake. Nature is the most ruthless in natural disasters.

In front of them, people are also very weak, so what can be avoided must be avoided, don't think that you are lucky, not all people are so lucky, if you are struck by lightning, the consequences are unimaginable.

When it rains, lightning is seen first, and this is because sound travels slower than light, so we see lightning first.

Because light travels faster than sound, when it rains we see lightning first and then hear thunder.

See the lightning first. Because the speed of light is faster, sound travels more slowly, and lightning is seen first.

This is because sound travels more slowly than light, so when we have a thunderstorm, we see lightning first.

I think this is a natural phenomenon, and it is also a physical phenomenon, so we must look at it rationally.

In fact, this is a very simple physics common sense, first we have to figure out how lightning is formed.

Thunder and lightning are generally generated in the cumulonimbus clouds with strong convection development, the distribution of charges in the clouds is more complex, there are both positive and negative charges, the positive charge and the negative charge form a potential difference, when the potential difference reaches a certain level, it will produce discharge, which is our common lightning phenomenon.

Secondly, we need to make it clear that the lightning we see is light, and the thunder we hear is sound. So we need to understand how fast they pass wrong.

Propagation of light. The velocity of light in a vacuum: The speed of light in water:. The velocity of light in glass:

The velocity of light in ice:. The velocity of light in the air: approximately, in fact should be less than 299792458 meters and seconds).

The speed of light in alcohol:.

Propagation of sound. Acoustic propagation is transmitted through a medium. Sound can only be produced due to the vibration of the object, and sound is the fluctuation produced by the vibration of matter, which needs to be transmitted by the medium to be heard.

The speed at which sound waves are transmitted in a medium is called the speed of sound (or speed of sound), and the reflection and refraction of sound occurs due to the different speeds at which sound travels in different media. The production of sound is due to the vibration of the object, and sound is the fluctuation produced by the vibration of the substance, which needs to be transmitted by the medium to be heard.

The magnitude of the speed of sound varies depending on the nature and state of the medium. Generally speaking, the value of the velocity of sound is greater in solids than in liquids, and in liquids it is greater than in gases. The speed of sound in the air is about 340 meters per second, or 1224 kmh, at standard atmospheric pressure.

The magnitude of the speed of sound also varies with the temperature of the atmosphere, and in the troposphere, as the altitude increases, the air temperature decreases and the speed of sound decreases. In the lower stratosphere, the air temperature does not change with altitude, and the speed of sound does not change, which is meter seconds.

We can see that the speed of light in the air is much greater than the speed of sound by 340 meters and seconds, so we see the light first and then hear the sound.

This is because light travels faster than electricity, and during a thunderstorm, lightning can usually be seen before sound can be heard.

Because the speed of light travels faster than the speed of sound, when thunder and lightning occur at the same time, we will see lightning first and then hear thunder.

I think it's just a natural phenomenon, so we must look at it rationally and don't speculate.

Lightning and thunder occur at the same time, but we usually see lightning first and then hear thunder, which is true because light travels much faster in the air than sound. At 15, the propagation velocity of sound in the air is 340 m s, while the propagation velocity of light in a vacuum is 3 108 m s. The propagation speed of light in the air is slightly lower, and it is also approximated to be 3 108 m s, which is equivalent to the Earth's equatorial circle in 1 s.

It takes seconds for light to travel back and forth on the moon.

Sometimes the weather merges, the situation is aggravated, the clouds form strong convective weather, electrons are generated, light rays are formed, we call it lightning, lightning produces sound at the same time, because the speed of light waves in the air is faster than sound, the light is bright, we can see it at a glance, and then we hear thunder, normal weather, lightning when it rains, the speed of light is fast, we can't hear thunder; Without lightning, there is no sound. Lightning and thunder are caused by electrical discharges between clouds with a heterogeneous charge or between clouds and the earth.

When the clouds with a heterogeneous charge are at a distance, the positive charge causes the air to decompose and an instantaneous discharge is released. A spark is lightning, and a sound is thunder. Lightning and thunder occur at the same time, but in the air, the speed of light is fast and the speed of sound is slow.

The speed of light reaches the ground first, so the lightning is seen first. Light travels through the air at a speed of about 300,000 kilometers per second. At this speed, it travels seven and a half times around the Earth's equator in one second.

Sound travels through the air at a speed of about 340 meters per second, or about 900,000 times the speed of light.

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Because the propagation speed of light is faster than the propagation speed of sound, light can be transmitted from the sky to the earth at a very fast speed in the process of propagation, but the propagation speed of sound in the air is 340 kilometers per second, so sound is a little slower than the speed of light.

This is because light travels faster than sound, so lightning is seen first, and thunder is heard after a while.

Because light travels faster in the air than sound, lightning is always seen before thunder is heard on a thunderstorm night.

Because the speed of light travels faster than the speed of sound, we see light and hear sound last.

The speed of light travels faster than the speed of sound.

Anyone who has studied physics knows that lightning and thunder are phenomena that people in nature can often hear and see. It usually occurs in clouds during severe convective weather. Because in the clouds, some clouds have a positive charge, some clouds have a negative charge, due to the characteristics of charge repulsion of the same sex, opposites attract, and also because of the positive and negative charges carry the accumulated energy is huge, the current is very large, the voltage is very high, when the positive and negative charges are close, it will break through the air and produce a huge ** sound, forming light and heat, which is the discharge process of lightning, and it is also the reason why people see lightning and hear thunder.

In fact, flash and thunder occur almost at the same time, so why do people always see lightning first and then hear thunder? The main thing is that light travels much faster in the air than sound travels through the air. (Light travels at a speed of 299792458 meters in the air, or about 300,000 kilometers per second, while sound travels at a speed of only 346 meters in the air.)

It is the reason why the speed of light is much greater than the speed of sound.

Lightning is accompanied by thunder, but we all see lightning in the clouds in the distance before we hear thunder, because the speed of light is much greater than the speed of sound.

The speed of light is 300,000 kilometers per second, while the speed of sound in the air is only 340 meters and seconds. And thunder, although it also occurs at the same time as lightning, the sound runs slowly, and it takes a while for it to reach our ears. So we tend to see lightning first and hear thunder after a while.

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.

Lightning and thunder occur at the same time, but the speed at which they travel through the atmosphere varies greatly, light can travel 300,000 kilometers per second, while sound can only travel 340 meters, so people always see lightning before they hear thunder.

According to this phenomenon, the distance from the place where the lightning occurred can be calculated from the length of the period of time from the time the lightning is seen to the time when the thunder is heard. If the lightning is in the northwest and thunder is heard every 10 seconds, it means that the thunderstorm is about 3,400 meters away.