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Material Type: Lab; Class: Fundamentals of Physics I; Subject: Physics; University: Portland Community College; Term: Unknown 1989;
Typology: Lab Reports
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Phy 101: Fundamentals of Physics Lab PCC Cascade
One of the most effective methods of describing motion is to plot graphs of distance, velocity, and acceleration vs. time. From such a graphical representation, it is possible to determine in what direction an object is going, how fast it is moving, how far it traveled, and whether it is speeding up or slowing down. In this experiment, you will use a Motion Detector to determine this information by plotting a real time graph of your motion as you move across the classroom. The Motion Detector measures the time it takes for a high frequency sound pulse to travel from the detector to an object and back. Using this round-trip time and the speed of sound, you can determine the distance to the object; that is, its position. Logger Pro will perform this calculation for you. It can then use the change in position to calculate the object’s velocity and acceleration. All of this information can be displayed either as a table or a graph. A qualitative analysis of the graphs of your motion will help you develop an understanding of the concepts of kinematics. w a l k b a c k a n d f o r t h i n f r o n t o f M o t i o n D e t e c t o r
Analyze the motion of a student walking across the room. Predict, sketch, and test distance vs. time kinematics graphs.
Power Macintosh or Windows PC Vernier Motion Detector Universal Lab Interface meter stick Logger Pro masking tape 1 - 1
Part l Preliminary Experiments
Part II Distance vs****. Time Graph Matching