Come on kids! Stay on task.
The lab investigation the rest of us were planning was pretty cool though. We built little fan powered cars and had some races. Mostly the cars crashed into each other but the builders of the winning car won a hundred grand candy bar. I did not win.
Then we got down to some science and calculated the cars' speed and acceleration and diagrammed the forces acting on them. Of course you can’t diagram the force of awesome but you can’t ignore it either when it’s running amuck and crashing into everything. Needless to say it was a logistics nightmare. But I tend to enjoy my job in spite of the crazy. Unhappily, there was far too much screaming and not all of it was from delight; getting your fingers caught in a fan car is not pleasant. Teaching middle school is not for the faint of heart…
Please recall this boring teacher training and the awesomeness that ensued. http://quoththewren.blogspot.com/2011/11/fan-car.html
One of my students was complaining the next day that I'd gotten into her head. Apparently she's starting to think about free body diagrams whenever she sees things moving. I make no apologies. Seeing the world through science can save your life.
I avoided killing a dear, myself and my friends because of free body diagrams.
I was driving the stretch of I-5 between Mount Vernon and Camano Island late at night and I saw a huge deer running straight at my car from the right, but due to my vigorous physics training I immediately saw the entire situation with force vectors and velocities. I instantly realized that if I moved one lane to the left and sped up, the deer would hit me instead of me hitting the deer. I was already moving before I fully realized that I was doing a science. Heh. And that deer SMACKED into my car. But so much better than if I had smacked into it. Physics is always the right answer kids.
Watch this to learn more about diagramming forces:
May the force be with you.


