Summary Physics Practical Skills (Errors and Uncertainties)
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Course
A2 Unit G486 - Practical Skills in Physics 2
Institution
OCR
This document includes the summary of how to deal with significant figures when facing OCR exam calculation questions. It also contains information about how to find absolute uncertainties and percentage uncertainties, especially for drawing the line of best fit and determine the value and the abso...
error content data always the same
systematic error
error Zero
Random error error not constant reaction time
error at thesame not thesameeverytime
randan error always occur l
Systematic error does
not introduce anydifference between theactualvalue
when thegradient
of thegraph remainsthesame
there is systematic error
due to zeroerrors on the
scalesbalance
, Precision Vs
Accuracy
howclose does themeasurementresult
accuracy
is to thetruevalue
precision how close doesrepeated
measurements are
to each other
Systematic errorcause
Improveaccuracy
repeatreadingsandtakemeanvalue
radonerror
cause
Improveprecision
reducepercentage uncertainty how it varies
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