That is because light travels much faster than sound waves. There is a sound barrier that covers the earth.
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When the lightning breaks it we see it.
Why does lightning come before thunder. The formation of the lower positive charge center in thunderstorms and the initiation of a lightning flash which precedes the commonly observed gush of rain on the ground may be explained in terms of this charging process. Lightning occurs commonly during thunderstorms and other types of energetic weather systems but volcanic lightning can also occur during volcanic eruptions. Lightning does come before thunder because thunder is the sound lightning make but light is faster than sound so you see it brefore you hear it.
Because the light that you see is traveling a the speed of light which is much faster than the speed of sound. Lightning comes before thunder in a way the speed of light the lightning comes before the speed of sound the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.
Although thunder and lightning occur at the same time the lightning is seen before the thunder is heard because light travels at a much faster speed than sound. This discharge may produce a wide range of electromagnetic radiation from heat created by. As a result we first see the lightning shortly followed by the sound of thunder.
The reason we see a flash of lightning before hearing thunder is because light travels faster than sound. Meterologist Tom Skilling delivers Chicago weather news reports and forecasts on WGN where he has worked for more than 35 years. Thats 5 times the temperature of the surface of the Sun.
Lighting always comes just before thunder because it is the heat of lightning that causes thunder. Lightning causes thunder a sound from the shock wave which develops as gases in the vicinity of the discharge experience a sudden increase in pressure. The temperature of the air in the lightning channel may reach as high as 50000 degrees Fahrenheit 5 times hotter than the surface of the sun.
Lightning is seen when there is a discharge of atmospheric electricity in the clouds or between clouds and the ground. Light and SoundWhy do we see lightning before thunderDont go out tonightA huge storm is comingLook at the weather outsideSee theres a huge ligh. The speed of light depends on what it is moving through - being slow in gases fast in liquids and even quicker in solids.
We hope you would like the video. The speed of light is 300 million meters per second while the speed of sound is only 340 meters per second. This creates an initial CRACK sound followed by rumbles as the column of air continues to vibrate.
Light from the sun takes about 8 minutes to reach the earth while sound travels about a mile in 5 seconds. Because the sound of thunder travels at a much slower speed than the flash of lightning you can use it to estimate the distance you are from a lightning strike. If you can see the lightning you can work out how far away.
If the growing cloud reaches a warm dry layer in the upper atmosphere it will stop growing and begin evaporating. A person on the ground sees the lightning flash before hearing the thunder because light at a speed of around 300000000 meters per second travels much faster than sound which moves at 340 meters per second. If someone hears a clap of thunder before they see a flash of lightning the thunder they are hearing is the result of a.
When the attraction becomes too strong the positive and negative charges come together or discharge to balance the difference in a flash of lightning sometimes known as a lightning strike or lightning bolt. Weather Wiz Kids is a fun and safe website for kids about all the weather info they need to know. The air then contracts rapidly as it cools.
Thus the light from the lightning travels much faster to our eyes. A person on the ground sees the lightning flash before hearing the thunder because light at a speed of around 300000000 meters per second travels much faster than sound which moves at 340 meters per second. It creats a shockwave as the surrounding air is rapidly compressed.
You can find Skillings weather reports and popular. It contains tools for weather education including weather games activities experiments photos a glossary and educational teaching materials for the classroom. Lightning does come before thunder because thunder is the sound lightning make but light is faster than sound so you see it brefore you hear it.
This is because light travels faster than sound. Immediately after the flash the air cools and contracts quickly. Lightning is a naturally occurring electrostatic discharge during which two electrically charged regions both in the atmosphere or with one on the ground temporarily equalize themselves causing the instantaneous release of as much as one gigajoule of energy.
In nature a lightning flash and the associated thunder occur at almost the same time in a thunderstorm. This rapid expansion and contraction creates the sound wave that we hear as. Sound waves can also bounce off molecules in the air causing it to travel in different directions.
Once lightning occurs the thunder will ALWAYS follow. This extreme heating causes the air to expand explosively fast. On a good day the cumulus cloud will continue to grow ice crystals will form at the top of the cloud and water droplets at the bottom.
As electrical charges separate lightning will be initiated. Sound travels at approximately 343 metres per second in air so the sound of thunder travels about 1 kilometre in 3 seconds. In this video Pramod Maheshwari sir PM Sir tell why is lighting seen earlier and thunder heard later.
The rapid expansion and heating of air caused by lightning produces the accompanying loud clap of thunder. If we are watching the sky we see the lightning before we hear the thunder. In the air sound travels at.
The speed of light travels much faster than the speed of sound so people should see lightning before they see thunder. So for simplicity sake assume that the light from lightening travels almost instantaneously and the sound travels 1 mile in five seconds. We can estimate the distance of the lightning by counting how many seconds it takes until we hear the thunder.
In nature a lightning flash and the associated thunder occur at almost the same time in a thunderstorm.
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