# How Far Does Sound Travel In A Second?

In air at a temperature of 70° F (22.2° C), sound travels at a speed of about 1,129 feet (344 meters) per second, which is roughly equivalent to one-fifth of a mile in one second, or one mile in five seconds (or one kilometer in about three seconds).

## How far does sound travel in 24 seconds?

As you can see, the speed of sound changes depending on the temperature and the humidity; but if you want a round number, then something like 350 meters per second and 1,200 feet per second are reasonable numbers to use. So sound travels 1 kilometer in roughly 3 seconds and 1 mile in roughly 5 seconds.

## How far away is a lightning strike if you hear the thunderclap?

After you see a flash of lightning, count the number of seconds until you hear the thunder. (Use the stop watch or count “One-Mississippi, Two-Mississippi, Three-Mississippi,” etc.) For every 5 seconds the storm is one mile away. Divide the number of seconds you count by 5 to get the number of miles.

## How many miles does sound travel per hour?

760 miles per hour

## Which is faster light or lightning?

Lightning is the flash of light that occurs when charge separation occurs. Like other forms of light, the light emitted from the lightning travels near the speed of light. This speed is near 300,000,000 meters per second. Note that the speed of light is much faster than the speed of thunder.

## Is lightning faster than sound?

Lightning heats the air and causes shock waves. Lightning and thunder happen at the same time. But you see lightning before you hear thunder because light, which travels a million times faster than sound, arrives almost instantly. Sound, on the other hand, takes about five seconds to travel one mile.

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## What is the 30 30 rule for lightning?

The 30-30 Rule is an easy way to determine the threat of lightning in your area: 30 Seconds: Count the seconds between seeing lightning and hearing thunder. If this time is less than 30 seconds, lightning is a threat. Seek shelter immediately.

## Why does thunder shake the house?

Shock waves are what makes your house shudder when there is thunder. This heat causes air to expand so rapidly that it generates a shock wave. When shock waves hit your house your house may shudder. Those shock waves are also the loud bangs and rumbles that we hear as thunder.

## Why does thunder sound like a bomb?

It suddenly heats the air to as much as 18,000 degrees and that air next to the bolt explodes out (and eventually cools and races back in to some degree) This exploding (expanding) and contracting air creates the sound we know as thunder.