Wednesday, June 13, 2012

Unit 1: Intro to Physics

During unit 1 of physics, we studied the differences between accuracy and precision. Accuracy is how close the measurements are relative to the real value while precision is how close the measurements are relative to each other. In other words, accuracy measures exactness/correctness and precision is based on if the results can be replicated.

Other things we studied were scientific notation, the metric system and dimensional analysis. Scientific notation is an easier way to represent extremely large or extremely small numbers in terms of decimal numbers between 1 and 10 multiplied by a power of ten. 0.0000000348 can also be written as 3.48 x 10^-8.

The lab we did in class revolved around pendulums. Through that, I learned that both mass and angle of release (of the pendulum) had nothing to do with period length contrary to what I previously thought.






The picture I chose to use was one that Mr. Blake took during the lab of my lab group. I decided to use this because it was easily accessible (thank you class website) and since there's no real chance of getting sued for using this picture on my blog I don't really have to go out and site the source (though I kind of already did).

1 comment:

  1. I like how you easily summed up what we learned in unit 1, and your description for your picture made me laugh. (not in a bad way)

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