Lab 104

# Lab 104 - LAB 104 Mehar Ghei LABORATORY EXPERIMENT REPORT...

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LAB 104 Mehar Ghei LABORATORY EXPERIMENT REPORT Name: Mehar Ghei Group Members: Nicole Tran, Yvunne Chen, Nakib Junayed Experiment Date: Tuesday, September 7, 2010 Course Name: PHYS 111A Section: H01 Instructor: Beidi He LABORATORY #104 Creating Motion Graphs 1. OBJECTIVE To use the motion detector to create graphs of distance verses time ( x vs. t ) and velocity verses time ( v vs. t ) of different varieties of motion combinations. 2. THEORETICAL BACKGROUND The plot of the graph x vs. t is a fairly straight line with v as its’ slope. The formula for average velocity is, v avg = = Total displacement Total time vavg xt If the slopes of the x vs. t graphs are negative, then the velocity is negative. Inversely, the distance on the graph of v vs. t is the area underneath the curve. If one wants to calculate the distance from such a graph, one would have to integrate the total area from t o to t. 3. PROCEDURE a) Before performing this experiment, the motion detector needs to be connected to the ULI, port 2, and also firmly grasped by the metal claps, which are attached to a rod. b) The software, LoggerPro, must also be on with the time limits of 0s to 10s. c) By clicking the “collect” button on LoggerPro, the motion detector will start taking data, which will record on the graph in LoggerPro. d) My group did several practice trials until we understood how fast the

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