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.bxnr* 7 x4kjqurements of the same quantity which of the followingc (9;ssfkg;v* jcj*p g can be reducgj c*p*j9vgs;sc (; fked?
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 c ys gt/p/xh+lc(j9l c1.u1wmdue to faulty 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 averaging them will have the /cl /myltjc g11w(9 . uxsp+hceffect of reducing the random error. Hence A is correct.
| 
Post time 2024-8-21 21:38:19