0
Add your answer:
Earn +20 pts
Which property of a measurement is best estimated from the percent error?
Measurement error: obviously!
If a measurement is small is the percentage error high?
yes, it is. The smaller the measurement, the higher the percentage error.
Why are several trials taken for each measurement in an experiment?
A good way to reduce error or increase measurement accuracy is to take several measurements and compute their average. In other words, you achieve accuracy through averaging. (This also validates the repeatability of the measurement.)
What are the two factors affects accurate measurement?
Calibration error and measurement error. Also, if the measurements are of different objects there may be random error.
How can reduce the percentage error?
The larger the sample, the lower the % error.. so to reduce a % error, increase your sample size.
Which property of a measurement is best estimated from the percent error?
Measurement error: obviously!
If a measurement is small is the percentage error high?
yes, it is. The smaller the measurement, the higher the percentage error.
Why are several trials taken for each measurement in an experiment?
A good way to reduce error or increase measurement accuracy is to take several measurements and compute their average. In other words, you achieve accuracy through averaging. (This also validates the repeatability of the measurement.)
What are the two factors affects accurate measurement?
Calibration error and measurement error. Also, if the measurements are of different objects there may be random error.
How can reduce the percentage error?
The larger the sample, the lower the % error.. so to reduce a % error, increase your sample size.
What is an error in measurement?
A error in measurement is when the measurement taken is not actually correct. For instance, you measure a gap as 49 centimetres wide. You cut the plank of wood to fit that measurement. Then discover the wood you have just cut is too wide to neatly fit the gap. There has been an error in the measurement you have taken.
Is every measurement subject to errors?
Yes, every measurement is subject to errors due to various factors such as limitations of the measuring instrument, human error, environmental conditions, and inherent variability in the quantity being measured. It is important to acknowledge and account for these errors to ensure the accuracy and reliability of the measurement.
Percent error formula?
Divide the calculated or estimated error by the magnitude of the measurement. Take the absolute value of the result, that is, if it is negative, convert to positive. This would make the percent error = | error / measurement |.
How do you reduce systematic error?
Systematic error is the result of complete equilibrium. The method to reduce systematic error is to introduce a proof that demonstrates the group has error in their consensus.
How do you overcome or reduce the problem of random error and systematic error while doing an experiment?
how to reduce the problem of random error and systematic error while doing an experiment
How do accuracy and precision of measurement affect calculated values and percent error?
The more precise your instruments of measurement are, the less percentage of error you will have.
What determines how close a measurement is to the true or accepted value?
This value is variable and different for each type of measurement. The error can be absolute or relative. A measurement without any error doesn't exist.
