Systematic Uncertainty, An uncertainty that arises due to an incorrect method or faulty apparatus where every measurement is affected., Random Uncertainty, An uncertainty that arises due to external influences on the experiment which sometimes result in a measurement being too high and sometimes result in a measurement being too low., Scale Reading Uncertainty, Uncertainty due to the type and precision of the scale used in a measurement., Calibration Uncertainty, Uncertainty due to the accuracy of an instrument., Accuracy, This refers to how close a measurement is to the true value of the quantity., Precision, This refers to how widely scattered repeated measurements are from the true value of the quatity., Approximate Random Uncertainty, This is calculated by dividing the range of repeated measurements by the number of repeats., Absolute Uncertainty, The uncertainty in a measurement expressed in the same units as the measurement., Relative Uncertainty, The absolute uncertainty divided by the measurement., Percentage Uncertainty, The relative uncertainty multiplied by 100., Total Uncertainty in a Measurement, The combined uncertainty taking account of random, scale reading and calibration uncertainties.

Uncertainties

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