Uncertainties Flashcards
When do you ignore the calibration uncertainty?
When it’s less than 1/3 of reading
When do systematic uncertainties occur?
When readings taken are either all too small or all too large.
Can be due to faulty measurement techniques or experimental data.
What is scale reading uncertainty?
An indication of how precisely an instrument scale can be read.
What is the random uncertainty and how can it be reduced?
When variations in measurements occur when on experiment is repeated it can be reduced by increasing the number of repeated measurements.
When does calibration uncertainties arise?
When there’s a difference between the manufacturers claim for the accuracy of an instrument when compared to the approved standard.
How many significant figures should absolute uncertainties be rounded to?
One
