Fryeburg Academy Physics

My Honors Physics classes are trying to estimate how much energy the school uses in a regular week. I found this website, which offers some nice estimates about how much energy various appliances use. Feel free to use it to help you make your estimate.

In Honors recently we’ve been looking at electricity, and the question was posed to me: “how much current does it take to kill a person?” I didn’t really have an answer that I was sure of, but this morning I found an article that has one: just 7 mA, applied directly to the heart for 3 seconds, will do the job. That is 7 milliamps, about 60 times smaller than the current flowing through one of the small light bulbs on the circuit boards when connected to the 3 V batteries.

And it was Adam Savage from the Mythbusters that said it, so it must be true!