The resonance of air in a wine glass

[miggy2129]

1. i have this science fair project coming up, and we had an idea to use acoustic levitation here is a link (http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/acoustic-levitation/") the problem is that i don't know what the resonance of air is in a wine glass. it says that i need a certain frequency to make the resonating effect, and it will cause the air pressure in the glass to increase, and as a side note, what intensity should i use to be able to levitate a piece of paper.



2. I don't really have equations because this is a high school project, and i don't know why, but my teacher does not recommend using equations as that will make the experiment more difficult.



3. I really have no idea, sorry

 

[jbsteele]

. However, I can tell you that the frequency of air in a wine glass depends on the size and shape of the glass. The larger and deeper the glass, the lower the frequency. Generally speaking, the frequency is between 500 and 1000 Hz. As for the intensity, it should be enough to cause acoustic levitation, but not too much as to cause the glass to break. You can use a sound level meter to measure the intensity of the sound.

 

[kerimek]

.



I would suggest that you first research the concept of resonance and how it relates to sound and objects. Resonance is the tendency of an object to vibrate at a specific frequency when exposed to a source of vibration at that frequency. In the case of a wine glass, the resonance frequency is determined by its size, shape, and material.

Next, you can experiment with different frequencies using a tuning fork or a musical instrument to find the resonant frequency of the wine glass. This can be done by tapping the glass and listening for a clear, sustained tone. The frequency at which the glass produces the loudest or most sustained tone is the resonant frequency.

As for the intensity of the sound, it is important to use a sound source with enough power to create the resonating effect. However, it is also important to be cautious and not use a sound intensity that could potentially harm your ears. It would be best to consult with a teacher or mentor to determine a safe and appropriate intensity for your experiment.

Lastly, while equations may make the experiment more complex, they can also provide a deeper understanding of the scientific principles at play. I would suggest discussing your ideas with your teacher and finding a balance between using equations and keeping the experiment feasible for a high school project. Good luck with your experiment!