# UMass Amherst PHYSICS 132 - Physics Lab 1 (2) (5 pages)

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# Physics Lab 1 (2)

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## Physics Lab 1 (2)

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Pages:
5
School:
University of Massachusetts Amherst
Course:
Physics 132 - Intro Physics II
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1 Describe your methods of measuring the dimensions of the library For both the length and width we measured the smaller squares outside of the library approx 60cm per square and counted how many squares it took to go from one side of the building to the other which ended up being a total of 55 squares for both width and length For the height we took the height of the 3rd floor library using the meter stick inside the library which was 248 cm and multiplied it by 26 floors Those were our methods of measuring the dimensions of the library 2 Calculate the volume of the library using the dimensions you measured and record them for the second part of this lab Trial Length m Width m Height m Volume m 3 Kyle 33 50 33 50 65 00 72946 25 Orrin 33 55 33 55 69 20 77891 69 Vicky 33 00 33 00 64 48 70218 72 Sam 33 20 33 20 66 00 72747 84 33 50m x 33 50m x 65m 72946 25m 3 33 55m x 33 55m x 69 20m 77891 69m 3 33m x 33m x 64 48m 70218 72m 3 33 2m x 33 2m x 66m 72747 84m 3 Representing your data 3 Calculate the mean and standard deviation of each of the three dimensions length width height using the four measurements taken by your table using the same method Mean length 33 3125m Standard deviation of length 0 2247m Mean width 33 3125 m Standard deviation of width 0 2247m Mean height 66 17 m Standard deviation of height 1 8327m 4 Calculate the volume of the library using the means for each dimension Just making a educated guess what do you think is the uncertainty in this volume What was the reasoning behind your guess 33 3125 m 33 3125 m 66 17 m 73430 348m3 There is uncertainty in this volume due to the height Our uncertainty estimate is about 10 000 m3 We estimate this uncertainty because it is hard to determine the height of the building since we don t know if all the floors are of the same height We also did not account for the fact that the basement and the 1st floor of the library are slightly bigger than floors 2 26 5 What is the average and standard deviation for the volumes

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