pt2 - Name: Section: Practice Test 2 for Test 1 Practice...

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Unformatted text preview: Name: Section: Practice Test 2 for Test 1 Practice Test Problem 2.1 Lets think back to some of the data analysis we have done in lab. (a)[11 pt(s) ]Given the theoretical line below, sketch in how you would expect the data to look for 10 data points for systematic and random error. You dont have to get too technical, but in a few words in the space below them, explain the difference in your drawings. random systematic (b)[3 pt(s) ]Why do we like to plot things in a straight line relationship and get our answer from the slope when we can? (c)[4 pt(s) ]Lets say we knew what the theoretical y- intercept should be for our straight line. If we had a systematic error, would we want to include this as a data point? Why or why not? Practice Test Problem 2.2 Imagine that in lab, at ( t = 0 ) you are passing through the position . 25m in front of the detector, 1. then you continue to walk away from the detector at a steady rate of 1.0 m/s for 2 seconds. 2. Then, you come to rest steadily over a 1 second period. 3. Then, you stand still for 1 second. 4. Next, you walk away from the detector speeding up steadily for 2 seconds, going from rest to v (6) , at x=4 m. (You will need to figure out v (6) for yourself!) 5. Finally, you walk toward the detector at a steady rate until you return to your initial position in 3 seconds. Assume you got to this new speed instantaneously , and just represent the instantaneous change in velocity as a vertical dashed line on the v- t graph, and end your acceleration graph at the beginning of this time...
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pt2 - Name: Section: Practice Test 2 for Test 1 Practice...

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