In physics class today we had to turn in our dart gun lab report and our follow up Barbie lab questions. Then we immediately went to writing notes on uniform circular motion. A few key points in the notes were that the acceleration is always directed toward the center of the circle and the magnitude of acceleration is a = v^2 / r, where v is the speed and r is the radius of the circle. Also the period (T) is how long it takes an object to move around the circle and the frequency (F) is how many times the object goes around the circle in a given time. Frequency and Period are inversely related. The equation is v = (2 * pi * r) /T or v = 2*pi*r*F. We also did a few examples on the example worksheet. Oh and while we were taking notes we found out that Austin can rotate his arm in a circle the fastest.
After notes we were given a pair check which was to be completed and turned in and any extra time we had we got to work on our homework. For tonight we have to complete page 155 # 1-10 in the textbook, Aristotle questions, HAC grade check, and the exam review and test review are due Friday. Also if we return all of our tests back in on exam day we will receive a few extra points.
Question of the Day: What does it mean we talk about the number of g's?
Well, I believe it is the acceleration of an object divided by acceleration due to gravity
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