What makes sounds have more volume (higher desibel)?
In: Physics
We often think of sounds as waves wiggling up and down. Really, it’s more like the air is a stretched slinky, and sound is like giving one end a push and pull. This causes a ripple of forwards and backwards motion to travel along the slinky. The harder you push, the more extreme this ripple will be.
We hear sounds when this ripple travels into our ears and causes our eardrums to wobble in and out. If a more intense ripple hits your eardrum, the eardrum will move more. This extra wobbling gets passed along the middle ear to the inner ear, and the size of wobble makes a bigger signal go to your brain.
If you want more info about sound and hearing, [here](https://www.nottingham.ac.uk/research/groups/hearingsciences/ear-facts/ear-facts.aspx) is a website by the University of Nottingham. It was designed for kids, but has lots of interesting stuff 🙂
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