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 stereo would be used because it is the closest sound and the loudest towards the ear.
2. Why is the “100″ more to the left than the numbers above it?
The 100 is more to the left then the other numbers, because it does not effect the ear as much and not as loud.
3. Why are the lines wavy? What does it represent?
The lines in the photograph are wavy because they reperstent sound waves to give a better understanding of the picture.
4. What is the purpose of the ear on the right?
The purpose of the ear is to show what the numbers are comparing to and how loud they are towards the human ear.
5. Do you need to know what a decible is in order to understand theis snapshot? Explain your answer.
to understand this snapshot you are not required to understand what a decible is.