Conductors

It's really kind of annoying when the physics test that everyone thought was easy, in (including yourself), in fact, so easy that doc decides to pull off the curve, turns out to be your worst test in second quarter, actually perhaps in the whole year. /sigh; oh well!

In class, we've moved from thermodynamics to electricity, which means a bunch of new stuff, and hopefully (for me) a better test. I did notice that just like how there are thermal conductors, there are electrical conductors. The same, of course, goes for insulators.

In both cases, an insulator resists the flow of energy, either heat or electrical energy. A conductor, then, allows the transfer of energy. This week's focus is on a couple things I could find in my house that are appropriate conductors of heat and electricity (there are a lot more than I thought!).


the wiring system which hooks up my router/road runner
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no idea why that bandaid was there..

so why are cooking things made out of metal? you tell me!

Some observations:

-any kind of metal is a good conductor.
-any kind of wiring is extremely good, too.
-water is a great electrical conductor but a terrible heat conductor. hmmmm....

With this, we know why parents always nag about drying your hands before turning off the light switch in the bathroom. See you next week for insulators.