Does anyone have any ideas about how to present the photoelctric effect to a younger (middle school age-ish) audience? I'm part of a scientific demonstration group at my college, and we have a quantum mechanics show that we perform for anyone from elementary schoolers to adults and teachers. I'm currently using a zinc plate and UV wave generator, which generally makes the younger kids' eyes glaze over.
Photoelectric effect demo?
Just show them how an ordinary street lamp works
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