Here's the formula for computing decibel levels:
* intensity is measured in
Here's an example:
|You're at a rock concert and you measure the sound intensity at|
|. Do you need ear plugs?|
Well, the threshold of pain is about 130-135 dB...
Put that calculator down! We can do this by hand...
Grab some earplugs!
YOUR TURN: (no calculator!)
|You measure the intensity of a sound to be 10,000|
|. What's the intensity in decibels?|