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Resolution and Uncertainty Readings are when one value is found e.g. reading a thermometer, measurements are when the difference between 2 readings is found, e.g. a ruler (as both the starting point and end point are judged). You can reduce uncertainty by fixing one end of a ruler as only the uncertainty in one reading is included.
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IB Physics Core: Problems 1 through 11; AHL Problems 1 through 19. 1. Four students measure the same length of string and their results are as follows: What is the average or mean measurement? What is the range of measured values? Repeated measurement of the same quantity can improve the overall acceptable value of that measurement.
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Phys 191 – Uncertainty Worksheet 1. Convert the following to relative uncertainties: a. 2.70 ± 0.05 cm b. 12.02 ± 0.08 cm 2. Convert the following to absolute uncertainties: a. 3.5 cm ± 10 % b. 16 s ± 8 % 3. Complete the following, determining the appropriate uncertainty: a. (2.70 ± 0.05 cm) + (12.02 ± 0.08 cm) b.
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uncertainty in the measurement. If you take several measurements of something, you will get a range of values. The ‘real’ value should be within this range, and the uncertainty is determined by dividing the range of values by two. Always round your stated uncertainty up to match the number of decimal places of your measurement, if necessary.
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Questions and model answers on 1.3 Errors & Uncertainties for the CIE A Level Physics syllabus, written by the Physics experts at Save My Exams.
Complete the table. Do you think your main source of error is random or systematic? If you believe one of the balances is off, how would you determine which one? What happens to your uncertainty after you've done the calculations? WHY?
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Oct 14, 2024 · Revision notes on Errors & Uncertainties for the CIE AS Physics syllabus, written by the Physics experts at Save My Exams.
