September 11,2006
(Right click on the picture and choose ‘Open link in new window’ to see a larger image. You will be taken to the USAToday website. Use the arrows to go to the 2nd picture)
The safe exposure limit for noise is 85 decibels for eight hours a day. Every time the volume level increases by three decibels, the safe exposure time drops by half.
1. Why would a car stereo be used in for the snapshot?
To show what which is the loudest out of the three.
2. Why is the “100″ more to the left than the numbers above it?
Because it goes from greatest to least.Also because the BoomBox is the least loudest.
3. Why are the lines wavy? What does it represent?
The lines are wavy because it represents the sound. Which is called sound waves.
4. What is the purpose of the ear on the right?
The purpose of the ear is to show how the sounds affect the ear.
5. Do you need to know what a decible is in order to understand theis snapshot? Explain your answer.
No, because you could figure it out by just observing it.
