The mass of a small metal particle is measured as .
PHYSICS · Multi-part · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
The mass of a small metal particle is measured as 0.000347900kg.
(a) Express this measurement in scientific notation such that all the original significant figures are preserved. State the number of significant figures in your answer.
(b) Round the value to four significant figures and write it again in scientific notation.
(c) Compare the number of significant figures before and after rounding and justify any difference, if any, in the counts.