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course phy 201
6/11 11:35pm
Which is longer, one cm_d or one cm_s?****
One cm_s
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Which is longer, one cm_s or two cm_t?
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One cm_s
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It is likely that your answers to the following will be in the form of decimal numbers. Give your results to three significant figures:
How many cm_t make a cm?
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3.5 cm_t
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How many cm_t would a measurement of 3 cm be?
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3*3.5=10.5 cm_t
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How many cm would a measurement of 13 cm_t be?
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3.7 cm
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Does it depend on where on the ruler the measurement is made?
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Im sure it does taking distortion into account.
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How many cm_s make a cm_t?
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There are 2.5 cm_t in 1 cm_s
.4 cm_s make a cm_t
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How many cm_s would a measurement of 5 cm_d be?
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3.2 cm_s
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How many cm_d would a measurement of 11 cm_t be?
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7.4 cm_d
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Does it depend on where on the ruler the measurement is made?
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Yes, mostly because of distortion
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Now answer the following questions about significant figures, including a brief but concise explanation.
Do you think all the significant figures in your result are appropriate? Explain.
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I think I might have done the significant figures correct for this, but I don’t think the answers are 100% correct due to distortion and my judgement errors.
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To how many significant figures are you pretty sure you could answer these questions. Explain.
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2 significant figures, at times on the more clear areas of a ruler possibly 3
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What is the smallest number of significant figures for which the last figure would be completely meaningless? Explain
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1 significant figure. If I answered each question to one significant figures it would be incorrect because some answers may be 2.2, 2.5, and 2.6 if I rounded up or down for each answer, it would take these completely different values the same.
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&#Good responses. Let me know if you have questions. &#