本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics
[单选题]
By averaging three measurements of the same quanti zo,(+o/1vszbk r l91 topb. ntt h/bksei.d(0ty which of the follout ,srbtw45a -*arv 5gwing can be rgwb-s4 tv rt5 au*a5,reduced?
A. Random errors
B. Systematic errors
C. Random & systematic errors
D. Zero errors
参考答案: A
本题详细解析:
Systematic errors arise due to faulty instrumentai2t x* fw)xhs0p 3n tfd5aavs, ug2(8htion or consistently bad technique. Averaging repeated measurements will not change a systematic bias. So B & C are incorrect. Zero errors are examples of systematic errors, where a the zero of an instrument is not correctly calix2 a(dhgx5w)atvp ,*fsfun i3ht0 82sbrated. So D is incorrect. Random errors will be sometimes too high and at other times too low – so averaging them will have the effect of reducing the random error. Hence A is correct.
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Post time 2024-8-21 21:38:19