dg_dundooah_218

dg_dundooah_218 - 0/35 Experiment Your name Partner...

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0 /35 Winter Quarter 2008 Experiment : Data Graphics and Analysis Your name: Anish Dundoo Partner: James Schaefer Performed on: 18 th January, 2008 TA: Hyundeok Song Section number: 218 Promptness % (100 means it was on time): 100 Additional Scores (+)/Penalties (-): Abstract  (4)  The intention of this experiment was to find the acceleration of gravity. The time period of the pendulum was calculated using the photogate. The bob was made to pass through the Photogate Bridge and since the photogate was connected to the computer, it calculated the exact time taken by the pendulum to complete one oscillation. The length of the pendulum was gradually increased by 10cm until it reached 80cm. From 80cm-160cm the length of the pendulum was increased gradually by 20cms. The following uncertainties were taken into account, u {T} = 0.001s and u {l} = 0.001m where u {l} is the least count of the meter scale that was used to measure the length of the pendulum and u {T} is the least count of the measurement that the photogate used to calculate the time period of one oscillation. The results from the photogate were plotted into a graph of Length (l) in meters Vs T2π2 in seconds. The corresponding periods formed a straight line, reconfirmed the accuracy of the experiment through its y-intercept of -.002 and an uncertainty of 0.004 which is very close to 0. The results from the experiment for the force of gravity which is 9.79 ±   0.04m/s 2 is exceptionally close to the theoretical value of 9.80 m/s 2 . Sample Calculations  (5)    Standard Equivalence Test (SET) for gravity: - ≤ + A B 2uA2 uB2 . - . . + . 9 79 ms2 9 80ms2 20 04m2 0 004m2 - . ≤ . = 0 01 is 0 0803 TRUE

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dg_dundooah_218 - 0/35 Experiment Your name Partner...

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