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# Learning Exercise

 Material: Physlets Submitted by: Chuck Bennett on Oct 07, 2000 Date Last Modified: Apr 08, 2004 Title: 1D Motion Physlet Problem #1 Description: Adaptation of Mario Belloni's physlet problem to work as a calculated question within WebCT. Time Required 15 minutes Topics: One dimensional motion. Course: Introductory physics. Prerequisites Skills: Knowlege of one-dimensional kinematics. Technical Notes: This question looks for the java archive files in the webct_install_dirwebctuserclasses subdirectory (i.e., Text of Learning Exercise: Mario's orgininal problem may be viewed at http://webphysics.davidson.edu/physletprob/ch8_problems/ch8_1_kinematics/kinematics_1.html.It involves two blocks with different motion parameters. A green blockaccelerates from rest, and an orange block moves at constant velocity. Both blocks start from the same point at t=0. The questions asks for thepoint at which the green block overtakes the orange block. The animationstops before this event occurs.The modification utilizes the random parameter feature of the WebCTcalculated question format. The advantage here is that you can allow unlimitedattempts and encourage collaboration. Since the parameters arere-randomized on each attempt, it is appropriate to report the correct answer after an incorrect submission.The WebCT version of this question is at http://webhw.unca.edu/bennett/WebCT/physlet_1d_1.zip.Download and unzip the file, and import into WebCT. A question databasecategory will be created called physlet_problems (if it does not alreadyexist).Once you have the problem working, create a quiz that uses it. The quizsettings that I find most effective for this problem are Unlimited attempts Highest score determines grade Release the score once the quiz has been submitted Show the student's response for each question Show the correct answer for each questionSend questions to bennett@unca.edu
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