Uncertainty Is To Hesitation As Error Is To. If you take several measurements of something, you will get a range of values. As nouns the difference between uncertainty and hesitation is that uncertainty is (uncountable) doubt;
Read the excerpts from the red badge of courage. Unlike errors, measurement uncertainty is the quantification of the doubt, which is obtained from the result of a measurement. If we calculate the force without the uncertainty, we obtain the expected value.