本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics
[单选题]
The variation of qua *h9pr9rc xj :r/qey-x):znvzyt5s9 2kl/pfq ntity P as quantity Q varies is plotted. Theory states that P sh qsn:lfvz9z 5 y/2tkp )ould vary linearly with Q. 
A. The systematic errors are substantial.
B. The random errors are substantial.
C. The random errors and the systematic errors are insignificant.
D. The random errors and the systematic errors are substantial.
参考答案: B
本题详细解析:
It is a mistake to believe that all graphs must go through the origin. In phwao0n;u8p j4fnk5 wa0 9d a3zxysics ma50a waf9z0xw un 3n8;kop4 jadny do not. But the scatter of the points suggests there are significant random errors. The fact that the line of best fit does not go through the origin can only be taken of evidence of a systematic error only if there is good theoretical reason to believe that the line must go through the origin.
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Post time 2024-8-21 21:38:19