Phys 220 lab 1 motion one dimension

Phys 220 lab 1 motion one dimension - position graph. We...

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Mike Johnston Phys 220 Lab Motion in One Dimension Analysis In lab one, we measured the acceleration along with the velocity while a person was moving forward or backwards. We used a motion detector to monitor the person which used ultrasonic pulses to measure the person’s movement. From the plots that were recorded we could calculate or read the position, velocity, or acceleration depending on what was being monitored. This allowed us to understand the basic variables of physics including acceleration and velocity. We used mathematical equations to calculate the slope, standard deviation, and average of lists. When looking at graph that is position versus time, we see points of where the object was at a certain time. The slope of the line at a certain point is known as the instantaneous velocity. This means that we can calculate the velocity from the slope of a
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Unformatted text preview: position graph. We can also do the same thing to the velocity graph and calculate the acceleration. This is also information that is extremely useful in physics. Finally lets look at the potential errors. The first potential error is with the motion detector and it not being perfectly level. If the sensor is not level, its pulses could take longer or shorter and read the wrong object. This could produce with extremely skewed results. Another error would be the sensor reading various parts of the body at different times. This could be due to the swinging of the arms or excessively long steps. This would create jumps in the graph that would spike then fall back down. These are some of the potential errors....
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This note was uploaded on 02/21/2010 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

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