Physics presentation ideas please for a senior in high school

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  • #1
joshwarner
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Hi! I'm in my final year of high school and I need to present to a jury a 5 minute presentation on a physics question. I'm looking for a topic that would combine physics and everyday life , similar to explaining ball movement in a given sport through aerodynamics and movement trajectory. My preferred topics are mechanics and wave interference. Any suggestions for a question or topic, while keeping in mind that timing will be very limited? Thanks for your contributions!
 

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  • #2
kuruman
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Structural coloration. This combines mechanics and wave interference and dispels the myth that the colors that people see are always the results of pigmentation.
 
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  • #3
haruspex
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Structural coloration. This combines mechanics and wave interference and dispels the myth that the colors that people see are always the results of pigmentation.
Yes, colour is a rich area for things that people often get wrong.
- that although we have three colour receptor types, each is sensitive across a broad range of frequencies, just peaking differently.
- that because we only have those three, an infinity of different actual frequency combinations can produce any given colour sensation.
- that pigmentation is about absorbing frequencies, e.g. plants are green because they do not use the green part of the spectrum in photosynthesis.
- that even apart from structural coloration and pigmentation, a substance may look a different colour depending whether the light is reflected from it or filtered through it. I don't know what that is called.
 
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joshwarner
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Thank you so much for your answers, I ended up choosing to do my presentation on structural coloration.
 
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  • #5
kuruman
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Have you done the presentation? If yes, please tell us how it went. If no, good luck.
 

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