Physics 20 Resources

 

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Bell Jar Video

This video demonstrates how sounds travels.

Below are 3 versions of this video. If your computer loads webpages slowly, use bell jar 3 (the smallest in size). Otherwise use 1 or 2.

If you need Quicktime, download a free version at Quicktime.

bell jar 1 (5.99 MB)

bell jar 2 (1.68 MB)

bell jar 3 (824 KB)

 

So why don't we hear the bell ringing after some air is taken out of the bell jar? Answer


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