Thunderclap sounds like a loud boom because lightning heats up the air around it really quickly. This makes the air expand and push against the air next to it, creating a sound wave that travels to your ears. It’s like when you blow on a hot soup, the steam goes whoosh! and makes noise.
Why Does It Sound Loud?
When lightning happens, it can be really hot, as hot as 30,000°C! That heat makes the air around the lightning expand in an instant. This sudden expansion causes the air to move quickly, making a big boom that you hear as thunder.
Why Is It Far Away?
Sometimes thunder sounds far away because the sound wave takes time to reach you. The louder the boom, the closer it is, just like how your voice sounds bigger when you’re right next to someone.
Examples
- A flash of lightning in the sky makes the air around it hot and loud, just like when you blow on steam from your soup.
- If you hear thunder after seeing lightning, it’s because the sound took time to reach you.
- Sometimes a big boom sounds like two booms, that's because the sound bounced off different layers of air.
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See also
- What Causes the ‘Sound’ of Thunder and How Far Can It Travel?
- What Causes the ‘Sound’ of Thunder and Why Does It Vary?
- What Causes ‘Thunder’ and Why Is It So Loud?
- What Causes ‘Thunder’ and How Far Can It Be Heard?
- What Causes the ‘Hum’ of a Refrigerator?
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