Unformatted text preview: function that involves both the sum and product of measured quantities h ( a,b,c ) = a × b + c can be determined by ﬁrst ﬁnding the uncertainty in the individual components, i.e. ﬁnd δg ( a,b ) for g ( a,b ) = a × b using formula (2) and then rewrite h as h ( g,c ) = g + c and apply formula (1). Interpretation of results with uncertainty Often times the purpose of lab experiments is to experimentally conﬁrm the value of a “known” quantity (such as the acceleration due to gravity) or to compare a quantity that is measured in two diﬀerent ways (for example the speed a bullet leaves a gun based on a measurement of its trajectory as well as a measurement of its ability to displace a large mass). When comparing two quantities that each have uncertainty (if one of the quantities 98...
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 Fall '08
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 Physics, ΔG, ΔA

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