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 meab.mj *gp)fkq (,u j, mnrg)rx,dx2v 5isurements of the same quantity which of the fhp 9p) q:gyj*gollowing can pj9*ph:ggyq ) be 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 faulty instrumentay7)befb x;1gosh6ak xh9- b, wtion 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 effect of reduc -afx kebhgy,bos7 9b6w)h1x;ing the random error. Hence A is correct.
| 
Post time 2024-8-21 21:38:19