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General Engineering Science Fair Project

Shattering Glass with Sound

Hard
Shattering Glass with Sound | Science Fair Projects | STEM Projects
Have you ever wondered what frequency of sound can cause a glass goblet to shatter? Find out by using a microphone and oscilloscope to measure the resonant frequency of the goblet.

Hypothesis

The hypothesis is that the resonant frequency of a glass goblet can be determined by using a microphone and oscilloscope.

Method & Materials

You will place the goblet near a high quality loudspeaker that is playing a note that very nearly matches the goblet's resonant frequency. The volume on the audio amplifier will be turned up rather high.
You will need a microphone, oscilloscope, high quality loudspeaker, and audio amplifier.

Results

The experiment showed that a "rigid" piece of glass can undergo vibration 800 times a second for several seconds before shattering. This demonstrates the power of sound and its ability to cause objects to vibrate at their resonant frequency.

Why do this project?

This science project is interesting and unique because it demonstrates the power of sound and its ability to cause objects to vibrate at their resonant frequency.

Also Consider

Experiment variations to consider include using different types of glasses and different frequencies of sound.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related video

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