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 meas q:x.e)6v g*otvxn j;murements of yh1g;jf ni..qq4 *asb ohd/a( the same quantity which of the following can be reduiyh fj doa1.h 4/q*;(qgsnab.ced?

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 ind 7w8urtc (chv10-7csn,ul hxstrumentation 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. Rando(u70wtc v-uhx7rcn ,h1ldcs8m 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.