Day 28: the power of the sun

One of the next units we are going to work on in Intro Physics will be radiation and convection. For a demo/experiment, we took a large parabolic mirror our to measure by how much we can increase the temperature of a can of water using sunlight, and we got some good results. I think it will be nice for the kids to build an energy scale that consists of a battery, a peanut, a dynamics cart rolling at low speed, and now, 5 minutes of sunlight collected from a 0.5m^2 mirror.

IMG 1251

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About John Burk

The ramblings of a physics teacher.
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