Qcf Level 3 Unit 1 M1

Satisfactory Essays
Experiment M1 was designed to familiarize us with how to take measurements with motion sensors, inferring graph such as time vs velocity and time vs position, and differentiating random and systematic error in an experiment. During activity 1 we begun by standing in front of motion sensor at a distance of 1.2 meters and varied our distance by 0.6 meters over the course of 25 seconds. This activity presented us with a position vs time graph that we were supposed to replicate to our best ability. For activity 2 we are given a position vs time to replicate and after replication a velocity vs time graph is created below. The graph showed that, though the position raises, evens out, and then returns to initial position; the velocity spiked positively, dropped negatively, and then evened out. During activity 3 we discussed the terms average value, random errors, systematic errors, accuracy, precision, and standard deviation. Using the equations provided in the text, we are able to calculate the average value and the standard deviation using the average value of both trails. After both calculations on each trial we were able to come to the conclusion that, increasing the range of results ultimately increased the standard deviation and random errors. The increase in standard deviation and random error lowered the accuracy of the trial. Theoretically, by closing our eyes in trial two there should have be an increase in standard deviation, random error, and a lower accuracy; in our results however, the second trial had a .000044 lower standard …show more content…
Systematic error was not evident in these trial but we were taught that they occur when the machine testing the variation incorrectly records data, or if the temperature in the area of testing is too lower, thus interfering with the speed of

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