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 quantity which o wdze9 f6o(;sdxbg 7o)qh3m7 /il2h gocdp5 s3f the following can be reduced2 q73sdl5i3hopg mhc /?

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 instrumentatio wt3-p fgdb;/ psfd3a-n 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 wil f/fg3aw3-t;ddps-b p l have the effect of reducing the random error. Hence A is correct.