Kognity IB Physics A.0 Measurements & Uncertainty (id: 92f2eca62)

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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 measurtg za)s*v )o +((xa qhp ,g*o:njv8khyements o ztz-7 bggwfh4sl z.-8f the same quantity which of the following can be -s 8bz gz7fltgh .-4zwreduced?

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 instrumentatioode: *5g+c9svy w lgb+ +x.pwhj x.ow7n 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 calibrated. 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 redu+x*gpge.oy +sw .w5+ hcwxb :loj97vdcing the random error. Hence A is correct.