Will you see lightning before you hear thunder?
If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. It takes approximately 5 seconds for the sound to travel 1 mile.
Why is light seen before thunder is heard?
Lightning is seen before thunder is heard because light travels faster than sound. Light travels at a blistering 299,792,458 meters per second.
Why do we see lightning before thunder Class 8?
Lightning is seen earlier and thunder is heard later because the speed of sound is 330 m/s and the speed of light is 300,000,000 m/s. Light travels faster than a sound. Thus, light from the lightning reaches first to you.
How far away is lightning when you hear thunder?
If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you’ll get the distance in miles to the lightning: 5 seconds = 1 mile, 15 seconds = 3 miles, 0 seconds = very close.
Is it possible to thunder without lightning?
No, it is not possible to have thunder without lightning. However, it is possible that you might see lightning and not hear the thunder because it was too far away. Sometimes this is called “heat lightning” because it occurs most often in the summer.
What is negative charge Class 8?
When an object has more electrons than protons then the object is said to be negatively charged. Similarly, when an object has more protons than electrons, the object is said to be positiely charged.
Is lightning really hotter than the sun?
In fact, lightning can heat the air it passes through to 50,000 degrees Fahrenheit (5 times hotter than the surface of the sun). …
Who is negative charge?
A negative charge is an electrical property of a particle at the subatomic scale. An object is negatively charged if it has an excess of electrons, and is uncharged or positively charged otherwise.
Why do we see lightning and hear the thunder a few seconds later?
Lightning is a gigantic spark of electricity that connects the thundercloud to the ground. It’s so hot that it causes the air to “explode” — that’s the sound we hear as thunder. However, thunder travels much slower than the light from a lightning bolt, so we usually hear thunder a few seconds after we see lightning.
What travels faster thunder or lightning?
Lightning travels at the speed of light, about 186,000 miles per second. This means that you see lightning pretty much when it happens. When lightning strikes, a noise is made which we call thunder. Thunder travels much slower, at the speed of sound, about 1088 feet per second.
What is lightning How does lightning strike class 8?
The bright flash of light which we see in the clouds is called lightning. Lightning is an electric discharge in the atmosphere between oppositely charged clouds (or between charged cloud and the earth). Lightning is produced by the electric charges in the sky.
What causes lightning to strike a person?
Direct Strike A person struck directly by lightning becomes a part of the main lightning discharge channel. Most often, direct strikes occur to victims who are in open areas. The heat produced when lightning moves over the skin can produce burns, but the current moving through the body is of greatest concern.
Why do you hear thunder before you see lightning?
The speed of light travels much faster than the speed of sound, so people should see lightning before they see thunder. If someone hears a clap of thunder before they see a flash of lightning, the thunder they are hearing is the result of a different bolt that the person didn’t notice.
Why does Thunder travel at a different speed than lightning?
Sound waves can also bounce off molecules in the air, causing it to travel in different directions. This accounts for the distorted rumbling sound of distant thunder while thunder that is close by can be heard as a loud crack or booming sound. Lightning travels at a speed of 300,000,000 meters per second, which is about 186,000 miles per second.
Which is better a clap of thunder or a flash of lightning?
If someone hears a clap of thunder before they see a flash of lightning, the thunder they are hearing is the result of a different bolt that the person didn’t notice. Because lightning occurs before thunder, lightning that is followed directly by the sound of thunder is a good indicator that a storm is quite close.
How often does the speed of sound travel during a thunderstorm?
The speed of sound, in dry air, is about 1 mile every 5 seconds. Since dry air is not common during a thunderstorm, the speed at which thunder travels is only an approximation, but a rough calculation can still be made of the distance of a thunderstorm by comparing the time factors of lightning and its accompanying thunder.