Thursday, June 12, 2025

Science Problems

 Yesterday, I proctored a whole bunch of really smart 11th grade kids (who cannot access the internet like my smart TV can, so who's smart now?) as they took an honors level physics final. I took physics when I was in 10th grade and I remember a very few things. I remember vectors -- a vector is the hypoteneuse of a triangle created by someone floating down river while also needing to get to a spot on shore.

Since I'm not much a sailor, I never really worried about vectors but I remember them. And the whole "compute the accelaration" thing doesn't get used much. I just push down the pedal and car makes go fast.

While I was proctoring, I discovered, though, that what I learned as the "left hand rule" is now the "right hand rule"! What the hey? When did that happen? Now, true, my grasp of physics is so limited that when I drop a ball is doesn't hit the ground, but I'm pretty sure that it was the left hand rule and it had something to do with electric current or hitchhiking. The details are not clear -- I took the final in 1985 and didn't do especially well. In fact, I felt that the most precise answer to most questions on a physics test was either "why ask me?" or "yep, that's a toughie". Strangely, those same answers worked for other science and math tests. Talk about grand unification theory!

I have, though, determined that physics, as a discpline has a lock on the best word problems. If you are taking a biology test, you get prompts like, "You eat a piece of cherry pie. Then what happens?" Not very interesting.

Or chemistry? "You add some green powder to some red liquid and light a fire -- present the formula for the brown sludge you have to comb out of your hair after the explosion." I mean, sure, "explosion" but still, meh.

Then you get to physics: "you are holding on end of a mile long spring as you float, alone in the depths of space. How high and how quickly does anyone have to send a magnetic pulse through the aither so that light will refract in a way to close a circuit without any loss of acoustic energy?"

Now that's a prompt.

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