Today in class we started to learn about sound and the
interaction between waves. On Thursday (yesterday), we talked about
constructive and destructive interference, but today we learned about
interaction between waves in a more visual way. We graphed the motion of waves
for each second until the two waves had interacted and passed each other. When I
was at the Kaupiko regatta this weekend, I sat on the beach with my crew, watching
the waves. This got me thinking about physics. You could clearly see the waves
breaking far off shore, and sometimes the waves would crash together and create
a huge splash. Other times, one wave would surrender to the other and would go
under, creating no turbulence above the water at all. Likely, when motion or
sound waves have destructive interference, the waves would cancel each other
out, resulting in a flat line. On the other hand, when motion or sound waves
have constructive interference, the resulting wave would be larger than either
of the original waves.
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