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 measurem+*5 nf+kxf lluents of t5w(zly.j1dre05irf u8ktw 8r he same quantity which of the following can bjdytf5 8w0lrwer( urk z815i.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 faultyuy( 6r1w8 m/comupia4 instrumentation 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 avera m(6i uu1r/p8acw4om yging them will have the effect of reducing the random error. Hence A is correct.