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 measurements of the same quanz ws. i)r06b9vhu7in;i z j6mztity which of the:ug6h ub nf7tlap,1h6oo3 (v8qok( ni following can ba g ukov 3 qb1n6o7u nlpit8(h,f:o6h(e 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 instrumentasztyd-36dyts8. vid g3j.nw7ac6y5 p 4rxo2 mtion or consistently bad technique. Averaging repeated measurements will yxs 7t3c5py t6adsrddy -v mio j32w.gz6.84nnot 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 reducing the random error. Hence A is correct.