Kognity IB Physics A.0 Measurements & Uncertainty (id: d9eac2f7a)

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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]
The variation of quantity P as quant. rlohzvz7:2mlj z8c z8f;d)y ity Q varies is plotted. Theoio6wmb*8s8xe.rlj2 qqd yk:5ry states that P should vary linear2 yr8 6qxbmdo*8ieswj: 5q.klly 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 mustt5vjts5;in s*t; n e0vhn +28xk)ays g go through the origin. In physics many do not. But the scatter of the points suggests there are sit52isgneshy+xtt8an) ksj5; vvn * ; 0gnificant 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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