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 qu/2iu* ewbzv24p a:jd gv(mu8tantity which of the follo 2q3pic5jm8t. khbd *owing can be red qb5 ipc tk3m2j8*dh.ouced?

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 aq (r/pbi c gd:l9p8b.due to faulty instrumentation or consistently bad technique. Averaging repeated measurements will not change a sys(cl p:.9i/gdb rqpb8atematic 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.