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PHY122
Error Propagation  Volumes Lab two
Joshua Manski
Partners: Sandra Thoms
Date: January 5
th
2008
SLN# 12909, Tuesday 6:40
Zhi Guo
Objectives
:
In this experiment we set out to practice analyzing errors by calculating volumes of
measured three dimensional shapes. This lab will allow us to understand exactly how errors
compound through formulas. This is important because these types of error calculations are used
throughout industry and the world to do product control quality. To calculate these errors in
volume, multiple measurements of the same object are needed to use the formulas.
Experimental Procedure
:
To complete this experiment we first had to obtain five objects to measure.
“1. A rectangular prism.
2. A triangular prism.
3. A hollow cylinder (find the volume of solid material). Be sure to also measure the “wall
thickness” directly with the calipers.
4. A bullet shape object, approximated as a cylinder plus hemisphere of matching diameter.
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View Full Document5. A small plastic cup. Estimate the volume of the cup by finding the volume of water that
fills a regular shape (rectangular box).”
These were given to us by the TA. We then had to use the computer to familiarize ourselves
with the calipers that were supplied in lab. After becoming proficient in using the calipers we
then needed to take measurements of the five objects. All of the objects needed to be measured
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 Spring '10
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