Practice Test 1 for Test 1

Practice Test 1 for Test 1Practice Test Problem 1.1 Let’s 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 don’t 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) ]Let’s 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? 1 This study source was downloaded by from CourseH on :29:26 GMT -06:00 amuri Practice Test Problem 1.2 Bumper cars A and B move along in straight parallel paths. Their velocities are given in the graph at the right. (a)[5 pt(s) ]For the entire time interval shown, calculate the average accelerations for each car. Is the magnitude of the average acceleration of Car A greater than, less than or equal to that of Car B?. (b)[3 pt(s) ]At t = 4s, is the distance between the two cars changing or remaining constant? Explain. (c)[3 pt(s) ]Suppose that at t = 0s, Cars A and B were passing the same stalled bumper car located directly between them. At t = −1s, which car is closer to the stalled car? Explain. 8 6 4 2 0 -2 -4 -6 v (m/s) t (s) -1 0 1 2 3 4 5 Car A Car B Practice Test Problem 1.3 For the following described motion, draw a position-t