How Does the Eardrum Affect Our Hearing?

Overview

Objectives/Goals To see how holes in the eardrum affect our hearing. Methods/Materials I built a model of the ear and made holes in the "eardrum". The vibrations of each sound were picked up by the mic element. The mic element was connected to the computer and the vibrations were recorded on to the computer. I tested 8 different frequencies and the holes were made bigger each time. Results There was no specific relationship between the hole's size in the eardrum and the amplitude. But it seemed that specific frequencies were better heard with varying hole sizes. Conclusions/Discussion There was actually suppose to be a constant result of hearing loss of some degree becuase one of the side effects of perforated eardrums, which is a disorder of having a hole in the eardrum, is hearing loss. Since i used a mic, there is a possibility that the sound itself was picked up instead of just the vibrations which made the results inaccurate.

Awards (1)

• Honorable Mention

Competition history

• CSEF 2009 Human Biology (Junior Division Only) · Entry J1327

Resources

• CSEF project summary ↗

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