On a rainy day, is it thunder followed by lightning or lightning followed by thunder

Thunder first, lightning later.

Thunder is a natural phenomenon.

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.

Reason: Lightning and thunder are common weather phenomena in summer, while snow is generally in winter, which are two completely different weather phenomena. However, as long as the weather in a certain place is suitable for both snow and thunder, these two completely different weather phenomena can occur at the same time.

In winter, when the sky is overcast and the temperature in the clouds above the sky is below freezing, the water vapor in the clouds condenses into snow. When snowflakes fall from clouds, if the air temperature near the surface layer is high, the snowflakes will melt into raindrops. Conversely, if the temperature near the ground level is low and the snowflakes cannot melt, at this time.

It snowed.

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 was seen first.

In life, it is common to see a lightning bolt streak between the sky on a rainy day before thunder can be heard. But this is an illusion. Actually, thunder and lightning happen together. So why is this the case? First of all, know what thunder and lightning are.

Thunder and lightning are essentially different manifestations of a form of atmospheric discharge. When clouds with different charges in the air come close to each other, electrical discharges occur between the clouds, resulting in electric arcs and loud noises. The arc here is what people usually call lightning, and the loud sound here is thunder.

Both occur at the same time.

But why do you always see lightning before you hear thunder? That's because the speed of light and the speed of sound are in the same medium, which is usually in air, and the speed of light is much greater than the speed of sound. So this leads to the fact that we always see lightning first and then hear thunder in our lives.

At the same time, because the attenuation of sound is much greater than that of light, people sometimes only see lightning and cannot hear the sound of thunder.

Lightning is a type of light, and the speed of light refers to the speed at which light waves or electromagnetic waves such as lightning travel in a vacuum or medium. The speed of light in a vacuum is the maximum speed of motion of an object in nature that has been discovered so far. It has nothing to do with the relative velocity of the observer relative to the light source.

This means that the speed of light is measured to be the same relative to the inertia of the light source at rest and motion. And the speed of sound propagation is only 340 meters per second, which is much less than the speed of light. This is why lightning is always seen first and then thunder is heard, and some people are not close to the clouds and hear thunder before they see lightning.

Summary. Thunder and lightning go hand in hand at the same time, but light travels faster than sound, so it's often the lightning that you see first, and then you hear the thunder.

Thunder and lightning go hand in hand at the same time, but light travels faster than sound, so it's often the lightning that you see first, and then you hear the thunder.

Thunder and lightning occur at the same time, due to a phenomenon of discharge between clouds with heterogeneous charges or between clouds and the earth in the early days of Huai, when the distance between clouds with heterogeneous charges is reduced to a certain distance difference due to movement, the strong potential difference between positive and negative charges breaks down the air and instantaneously discharges, and the discharge spark produced during discharge is the lightning we see, and the sound produced during discharge is thunder. In the same way, when the charged cloud is moving, the corresponding place on the ground generates an induced charge, and if the distance between the cloud and the ground or a tall object on the ground is small, the air between the cloud and the object is broken down and an instantaneous discharge occurs to produce thunder. We see lightning first and then hear thunder, because the speed of light is much greater than that of sound, so we see lightning first and then hear thunder.

Reasons why lightning strikes first and then thunder: lightning and thunder occur at the same time, because the speed of light travels faster than the speed of sound, so we always see lightning first and hear thunder later.

Because lightning and thunder occur at the same time, we can judge the height of clouds to the ground based on the fact that thunder generally lasts for a period of time after a lightning light. Sound can only travel kilometers in the air for 1 second, while light can travel 3,000,000 kilometers per second. Therefore, the speed of light travels much faster than the speed of sound, so after lightning, thunder will occur.

Thunder and lightning is a majestic and somewhat intimidating electrical discharge phenomenon accompanied by lightning and thunder. The condition for the generation of thunder and lightning is that there is accumulation in the thunderstorm cloud and polarity is formed. According to different topographic and meteorological conditions, lightning can generally be divided into three categories: hot lightning, frontal lightning (hot front lightning and cold front lightning), and terrain lightning.

Since the same charge repels each other, the positive and negative charges are concentrated at each end of the cloud. When the electricity carried by the cumulus clouds reaches a certain level, it will pass through the air and discharge, neutralizing the two charges and generating sparks, which is the phenomenon of lightning. Thunder and lightning is a phenomenon of static electricity or electrical discharge, and lightning is a phenomenon of electrical discharge in thunderclouds.

Precautions when thunder and lightning strikes

1. When we are outdoors, we should try to stay away from tall buildings, trees, and metal objects. Because lightning finds the easiest place to conduct electric current, these objects are easy targets for lightning strikes. It is best to find a flat place to squat and keep your feet as close to your body as possible to reduce the chance of lightning conduction to your body.

2. We should try to avoid outdoor activities during thunderstorms. When we hear thunder, it indicates that the lightning activity is very close to us, and it is best to avoid continuing to go out at this time to avoid being struck by lightning. If we can't find a safe place to hide outdoors, we can look for a low place and try to keep our body deep below the ground to minimize the risk of lightning strikes.

3. We should also stay away from water bodies and wetlands, because water has a good electrical conductor, and it is easy to attract and conduct current. When we are in the water, even if we are not directly struck by lightning, it is easy to cause electric shock accidents due to the conduction of electric current. So stay away from the water during a thunderstorm to ensure your personal safety.

4. We should pay attention to weather forecasts and lightning warnings. The weather forecast can tell us in advance if there will be a thunderstorm, giving us enough time to make arrangements accordingly. The lightning alarm is a system that can warn of lightning activity in advance, and when we hear the lightning alarm sound, we should immediately take corresponding protective measures to ensure our own safety.

Thunder first, then lightning.

There is a certain time lag between thunder and lightning, and usually we hear thunder after seeing lightning. This is because light travels much faster than sound. Lightning is a huge discharge caused by an imbalance of electric charges, forming an electric arc in the atmosphere.

This phenomenon causes a large amount of energy to be released, creating an extremely powerful charging effect, and these released charges will eventually lead to the formation of lightning. The thunder is caused by the thermal expansion and contraction of the gas generated by lightning.

However, just because you hear thunder doesn't mean you can see lightning. When the sky is very dark, there's a good chance you'll hear thunder, but you won't see lightning. And vice versa, when lightning waves spread very close to us, it is very easy to see lightning due to the speed of propagation, but you may not hear the thunder of the sympathetic feast.

In this case, thunder followed by lightning is equivalent to a chronological problem. Because the thermal expansion and contraction effect of lightning gas takes less time than the time it takes for lightning to propagate, it is very likely that we have not seen lightning when we hear thunder. Therefore, our general practice is to hear thunder first and then wait for a while to see if there is any lightning.

When we see lightning, we understand that lightning is caused by lightning activity. Not only that, but note that lightning and lightning form together because under the same heat balance conditions, lightning can accelerate the formation of lightning. If we want to understand the physical principles of the meteorological processes that are gradually formed, we need to study the chemical reaction processes.

In conclusion, there is always a time difference between hearing thunder first and seeing lightning first, regardless of the weather situation. <>

Summary. Hello, pro thunder and lightning are at the same time.

Hello, pro thunder and lightning are at the same time.

It is due to a discharge phenomenon between clouds with heterogeneous charges or between clouds and the earth, when the distance between clouds with heterogeneous charges is reduced to a certain distance due to movement, the strong electric potential difference between positive and negative charges breaks down the air and instantaneously discharges, and the discharge spark produced during discharge is the lightning we see, and the sound produced during discharge is thunder. In the same way, when the charged cloud is moving, the ground corresponding to the width of the ground generates an induced charge, and if the distance between the cloud and the ground or a tall object on the ground is small, the air between the cloud and the object is broken down and an instantaneous discharge occurs to produce lightning. We see lightning and then hear thunder, because light travels much faster than sound, so we see lightning and then hear thunder.