A quality-control technician writes in a report: "The width of the steel plate is ."
PHYSICS · Multi-part · 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
A quality-control technician writes in a report: "The width of the steel plate is 152.3mm."
((a)) Explain why this sentence does not yet name a measurand, even though it has a number and a unit.
((b)) Write a version of the sentence that specifies the measurand precisely enough that a second laboratory, given the same plate, would measure the same thing.