Homework Answers
Uncertainty caused by unknown and unpredictable changes in the experiment due to measuring instruments and environment are classified as random errors.
While uncertainty caused by repeatable imperfection in the experiment are called the systematic uncertainty because these uncertainties are systemic and can be measured.
first statement is correct.
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What is systematic uncertainty? A source of measurement uncertainty caused by repeatable imperfections in the experiment....
1. What type of uncertainty (random, systematic, random & systematic) would be caused by: a) the...
1. What type of uncertainty (random, systematic, random & systematic) would be caused by: a) the CRO grid's reading precision? b) an incorrect plate separation value?
EXPERIMEN T 2 Experimental Uncertainty (Error) and Data Analysis T Advance Study Assignment Read the experiment...
EXPERIMEN T 2 Experimental Uncertainty (Error) and Data Analysis T Advance Study Assignment Read the experiment and answer the following questions. I. Do experimental measurements give the true value of a physical quantity? Explain. 2. Distinguish between random (statistical) error and systematic error. Give an example of each. 3. What is the difference between measurement accuracy and precision? Explain the general dependence of these properties on the various types of errors.
8) Uncertainty Analysis Hagen-Poiseuille equation (shown below) is used to experimentally determine the velocity of a...
8) Uncertainty Analysis Hagen-Poiseuille equation (shown below) is used to experimentally determine the velocity of a fluid using a capillary viscometer. This experiment consists of measuring the flow rate of a fluid of unknown viscosity through a tube and recording pressure drop and volumetric flow rate 8OL Where: ??s viscosity L is pressure drop Pal R is tube radius m [om cm Q is volumetric flow rate is tube length 1cm For this experiment, you record pressure drop from a...
The final step of experiment in Lab6 is to estimate the systematic uncertainty of your final...
The final step of experiment in Lab6 is to estimate the systematic uncertainty of your final measurement due to the variations of the parameters you measured in the lab. Equations (6.7) and (6, 8) in your lab manual give expressions for e/m and the relative error of e/m due to all of the parameters measured in the lab. (Sigma _e/m/e/m)^2 = (sigma _v/V)^2+(2 sigma _O/I^2+2 sigma _R/R)^2+(2 sigma _r/r))^2 Term # 1 2 3 4 Assume your mean measurements of...
I am working on my Physics lab report where it was all about Direct Current Measurement...
I am working on my Physics lab report where it was all about Direct Current Measurement and Ohm’s Law. We had 5 different resistors and had to construct different circuits using a power supply, volt-ohm-milliammeter (VOM) and a digital multimeter to get measurements of resistance, voltage, and current. Nominal values of resistance and tolerance Resistor Nominal Resistance (Ohms) Tolerance (Ohms) R1 680 +/- 68 R2 1000 +/- 50 R3 1500 +/- 75 R4 4700 +/- 470 R5 10,000 +/- 500...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has half the standard uncertainty of measurement A. Therefor e our 68 % coverage probability is associated with a smaller interval (83.44 g o 83.56 g) for measurement B than measurement A (83.38 g to 83.62 g). In other words we have better knowledge about the value of the measurand from measurement B, since we have the same coveroge probability associated with a norrower interval....
1. What is a measurement? Give your own definition of what constitutes a measurement based on...
1. What is a measurement? Give your own definition of what constitutes a measurement based on your previous courses with lab components (biology, chemistry, physics) 2. Two engineers must measure the distance between the McGill metro station to the athletic centre to build an underground tunnel. One engineer finds that the distance is 9134 ± 5m while the other finds that the distance is 9150 ± 20m. In what ways can they compare their measurements? Do their measurements agree? Explain....
figure 2.3 EXPERIMENT Experimental Uncertainty (Error) and Data Analysis 2 Laboratory Report TI QUESTIONS 1. Read...
figure 2.3
EXPERIMENT Experimental Uncertainty (Error) and Data Analysis 2 Laboratory Report TI QUESTIONS 1. Read the measurements on the rulers in Fig. 2.9, and comment on the results Ruler 1 om 5 Ruler 2 cm 6 Ruler 3 TTm 6 Figure 2.9 2. Were the measurements of the block in part tb) of Procedure 2 all done with the same instrument? Explain. 3. Referring to the dart analogy in Fig. 2.3, draw a dart grouping that would represent poor...
The following data represent the results from an independent-measures experiment comparing three ...
The following data represent
the results from an independent-measures experiment comparing three
treatment conditions with n = 4 in each sample. Conduct an analysis
of variance with α = 0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments. Treatment A Treatment B Treatment C 18 20
22 19 18 20 18 20 19 21 22 23 F-ratio = p-value = Conclusion: There
is a significant difference between treatments These data do...
only one problem (Exercise 1-11 only) Uncertainties in Measurement and Propagation of Errors one measurement is...
only one problem (Exercise 1-11 only)
Uncertainties in Measurement and Propagation of Errors one measurement is made and often the peecision of the instrument is used as arn mate of the uncertainty. the instrument and the situation, the uncertainty Depending upon could be less than the precision of the instrument or it could be more. For example, in measuring we may estimate the distance between the small est subdivision (mm) if we rurn the meter stick onto its side to...
1. What type of uncertainty (random, systematic, random & systematic) would be caused by: a) the CRO grid's reading precision? b) an incorrect plate separation value?
EXPERIMEN T 2 Experimental Uncertainty (Error) and Data Analysis T Advance Study Assignment Read the experiment and answer the following questions. I. Do experimental measurements give the true value of a physical quantity? Explain. 2. Distinguish between random (statistical) error and systematic error. Give an example of each. 3. What is the difference between measurement accuracy and precision? Explain the general dependence of these properties on the various types of errors.
8) Uncertainty Analysis Hagen-Poiseuille equation (shown below) is used to experimentally determine the velocity of a fluid using a capillary viscometer. This experiment consists of measuring the flow rate of a fluid of unknown viscosity through a tube and recording pressure drop and volumetric flow rate 8OL Where: ??s viscosity L is pressure drop Pal R is tube radius m [om cm Q is volumetric flow rate is tube length 1cm For this experiment, you record pressure drop from a...
The final step of experiment in Lab6 is to estimate the systematic uncertainty of your final measurement due to the variations of the parameters you measured in the lab. Equations (6.7) and (6, 8) in your lab manual give expressions for e/m and the relative error of e/m due to all of the parameters measured in the lab. (Sigma _e/m/e/m)^2 = (sigma _v/V)^2+(2 sigma _O/I^2+2 sigma _R/R)^2+(2 sigma _r/r))^2 Term # 1 2 3 4 Assume your mean measurements of...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has half the standard uncertainty of measurement A. Therefor e our 68 % coverage probability is associated with a smaller interval (83.44 g o 83.56 g) for measurement B than measurement A (83.38 g to 83.62 g). In other words we have better knowledge about the value of the measurand from measurement B, since we have the same coveroge probability associated with a norrower interval....
1. What is a measurement? Give your own definition of what constitutes a measurement based on your previous courses with lab components (biology, chemistry, physics) 2. Two engineers must measure the distance between the McGill metro station to the athletic centre to build an underground tunnel. One engineer finds that the distance is 9134 ± 5m while the other finds that the distance is 9150 ± 20m. In what ways can they compare their measurements? Do their measurements agree? Explain....
figure 2.3
EXPERIMENT Experimental Uncertainty (Error) and Data Analysis 2 Laboratory Report TI QUESTIONS 1. Read the measurements on the rulers in Fig. 2.9, and comment on the results Ruler 1 om 5 Ruler 2 cm 6 Ruler 3 TTm 6 Figure 2.9 2. Were the measurements of the block in part tb) of Procedure 2 all done with the same instrument? Explain. 3. Referring to the dart analogy in Fig. 2.3, draw a dart grouping that would represent poor...
The following data represent
the results from an independent-measures experiment comparing three
treatment conditions with n = 4 in each sample. Conduct an analysis
of variance with α = 0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments. Treatment A Treatment B Treatment C 18 20
22 19 18 20 18 20 19 21 22 23 F-ratio = p-value = Conclusion: There
is a significant difference between treatments These data do...
only one problem (Exercise 1-11 only)
Uncertainties in Measurement and Propagation of Errors one measurement is made and often the peecision of the instrument is used as arn mate of the uncertainty. the instrument and the situation, the uncertainty Depending upon could be less than the precision of the instrument or it could be more. For example, in measuring we may estimate the distance between the small est subdivision (mm) if we rurn the meter stick onto its side to...
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