Sunday, May 2, 2010

Time is Running Out...

My title is true. But as my time in AP Physics B ends, and I write my last blog, I reflect on the year with mixed emotions. Anyway, back to my topic. Time. I took an SAT this Saturday, and that wasn't fun. But my proctor said something that got me thinking about Physics. He was talking about the analog clock on the side wall of the room. He said, "I wouldn't rely on that clock because it's a little fast going downhill and a little slow going up." I thought of why that would be, and before I knew it, the test was starting.

I came to the conclusion that it has to do with gravity! Well, obviously. I realize now that this is a fail blog topic. But it's late and I'm tired, so I'm sticking with it. Sorry, doc.

Anyway, the force of gravity is greatest in magnitude when the minute hand is over the 3 and the 9! There is the most surface area and force on the hand when it is at those points (plus the force doesn't have to be componetized). When the hand is going "downhill," gravity works with the movement of the hand, so it goes faster. However, when going "uphill," gravity works against the hand, so it goes slower.

Thus ends my lame blog. Oh well. I think I also used this because I'm subconsciously really happy that my dad bought me a nice watch this weekend. :] Thanks, Daddy.

Anyways, have a really great week everyone! Good luck on AP exams and especially our Physics final! Couple more weeks, and we'll all be good!

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