Video Clips: You should view the video clips for your course. Experiment 2 will help make the video clips clear, and if you have difficulty with Experiment 2 the video clips should help clarify some aspects of the experiment and its analysis.
Timer program: The TIMER program is under Course Documents, Downloads on the Supervised Study page. It can be run from the homepage, but it will be more convenient if you save it to a folder and run it from your RUN menu. To use the TIMER program, simply strike the t key every time you want to see the total time since you first struck the key and the time since your last keystroke. Just hit the t key a few times and you will get the idea. To quit timing press the Q key, then hit Enter a few times until you get a menu that allows you to quit.
Randomized Problems: Unless specified otherwise on the homepage, all Physics I classes should do the specified Randomized Problems and submit solutions by email. When the solution involves a graph, include a description of the graph with enough detail that I can tell whether you have done the graph correctly. Details might include things like the scale of the graph, whether and if so where it intercepts the vertical and horizontal axes, whether the graph is rising, falling or sometimes both (and if the latter where each behavior occurs), whether the graph appears to indicate something that should follow a straight line or whether it curves upward or downward, etc.. A sample description might be something like "the graph of y = how much is learned per hour vs. x = the number of hours spent per week in studying starts at the vertical axis, with vertical intercept .1, then rises slowly at first then more and more rapidly until it nears a peak at x = 12, where its rise slows until it reaches the peak, after which the graph descends more and more rapidly until it nears and becomes asymptotic to the x axis". Most of your graphs won't be quite this comples and require this much description, but this is an example of the sort of communication we are working for.
Questions and Answers: If you run into difficulty on the log(T) vs. log(L) stuff in the pendulum experiment, go to Questions and Answers on the homepage. Look at the first link, Pendulum Analysis: log(T) vs. log(L) and T vs. L .
For more information on using the pendulum as a timer, see video clips and look under Questions and Answers, Using the Pendulum as a Timer.
For an example of determining a straight line to fit a set of data points, and determining the slope of the line, see Questions and Answers, Finding the Slope of a Straight Line from a Data Set.
For a discussion of error bars, see Questions and Answers, Error Bars, Rectangles, and Linearity.