Can you shatter glass with soundwaves? There are many different types of sound frequencies that can cause glass to break. The sound waves vibrate the air particles around the glass and if the sound is loud enough, the vibrations can cause the glass to vibrate so hard that the glass shatters. Sound waves were first discovered in the 6th century B.

C by a greek mathematician and philosopher, Pythagoras. Later in 1801, a french mathematician discovered that complex waves that are produced by a vibrating string consist of simple waves. In the 1900s, more work on waves was done. When you tap a glass a sound is usually made. When you hit the glass the glass usually vibrates.

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This vibration is caused by the natural resonant frequency of the glass itself. Resonant frequency is the natural frequency in which the particles in the object vibrates. This is why whenever a glass vibrates it is caused by the particles moving within the object. However how does this relate to soundwaves? Soundwaves have a resonant frequency just like any object.

This is why soundwaves vibrate at different oscillations. Oscillations is the movement of soundwaves back and forth at a regular speed. The rate at which how fast the oscillations occur determines the pitch of the sound wave. Soundwaves that are faster are going to have a high pitch, however soundwaves that are slower will have a deep pitch. As shown in the graph above, the longer the period, the shorter the wave. A shorter wave happens when resonant frequency is slower.

This causes a deep pitch because the vibrations are more spread out. It is completely opposite for a high pitch noise. The shorter the period, the higher the wave. A higher wave happens when the resonant frequency is faster. This causes a high pitch because the vibrations are less spread out and closer together. In order to break a glass you need to match the pitch or resonant frequency that the glass has.

For example if a wine glass has a high pitch then in order to break the glass you need to match the pitch. In this experiment an oscilloscope will be used to match the resonant frequency. An oscilloscope is a device that determines the resonant frequency of a glass by hitting it. After the resonant frequency of the glass is found a sound frequency generator is used to make the same frequency once the natural frequency of the glass and the generator make the same noise the glass will break.

In conclusion this experiment is trying to see what frequencies break different glasses and if sound waves can break glass. Our hypothesis is that sound waves can shatter or break glasses. The oscillations and frequencies in order to break the glass will be determined in this experiment.

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