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 mea ( dsm1nqlvo, ia5ri8pav;.sb/ bd/.hsurements of the same quantity w iw0f rw )t6i 45t,)7+*eybwdnbt hwcuhich of the following can bytw*n dcww7ettubwbh5) 6), i4i+ r 0fe 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 v c zlz.jf99s:5lwe5winstrumentation 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 othel. wv55e99 f zcwlj:szr times too low – so averaging them will have the effect of reducing the random error. Hence A is correct.