How fast does sound travel? When someone speaks to you, you can hear what they say almost as soon as they start speaking. It's a bit different if you see a lightning strike. The thunder and lightning are produced at the same time. However, you see the flash first. A little later, you hear the thunder. This shows that sound (thunder) travels more slowly than light (the flash of lightning). 1 The picture shows an experiment to measure the speed of sound. The person with the timer starts it when he sees the smoke from the starting pistol and stops it when he hears the bang. 1700 m 5.00
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Explanation:
about (1126) feet per second
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