September 11, 2006
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?
The car stero would be used because alot of peaople blastbtheir music in the car with the windows up and that can damage your hearing.
1. Why is the “100″ more to the left than the numbers above it?
The “100″ is more to the left because it is the losest sound.
2. Why are the lines wavy? What does it represent?
the lines are wavy because that would help us understand the picture better. Also because they are sound waves.
3. What is the purpose of the ear on the right?
the ear is there because the sounds go into your ear and it could damage your hearing. Also that is what the graph is about.
4. Do you need to know what a decible is in order to understand theis snapshot? Explain your answer.
