A report extract reads: "The density of the sample was found to be

PHYSICS · Subjective · Fermi University Physics · Scientific Practice & Experimental Methods · Quantities, units and the practice of measurement · Quantities, units and the practice of measurement

Measurement and Method, Ch What a measured value is: quantities, units and the SI

Problem

2.75

. The mass was

13.482\ \mathrm{g}

and the volume was

4.9\ \mathrm{cm^3} = 0.0049\ \mathrm{m^3}

. The relative uncertainty in the density is estimated at

5.1\%

. Density

= 2.7500 \pm 0.14\ \mathrm{g\,cm^{-3}}

." Judged against the chapter's conventions for units, prefixes, the bracket and rounding, find the four faults in this extract and rewrite it correctly.

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