(Approxmation and Errors)
1. Find the lower limits of the following measurements.
(a)8.2 cm
(b)900m
2. Find the maximum absolute errors of the following situations.
(a) A volume of 12 cm , correct to the nearest cm.
(b) A length of 24.2 m , correct to the nearest 0.1 m.
(c) A number of 4800 , correct to 2 significant figures.
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F.2數----接近和誤差
2010-07-27 8:45 pm
回答 (1)
2010-07-27 9:16 pm
✔ 最佳答案
8.2 cm(cor.to 2sig.figs.)Lower limit:
8.15(cor.to 2sig.figs.)
Upper limmit:
8:25(cor.to 2 sig.figs.)
____________________
900m(cor.to 2sig.figs.)
Lower limit:
850(cor.to 2sig.figs.)
Upper limit:
950(cor.to 2sig.figs.)
______________________
A volume of 12 cm , correct to the nearest cm
1/2=0.5____________A length of 24.2 m , correct to the nearest 0.1 m
0.1/2
0.05
______________
A number of 4800 , correct to 2 significant figures.
100/2
=50
______________________
收錄日期: 2021-04-13 18:28:03
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