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 quantity Q varies z .(lvaa9k(qyis plotted. Theory stat7124 yte9 gpz6(oo*an reswq0ebz2 enes that P sh0yswg2zzee(1q2boo6n 4ep9 n 7er *at 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 tht dxl jh9:*loez ihu5 5/89lvnat all graphs must go through the origin. In physics many 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 theoreticalvdh ie95/89* xulz5ot lj:lnh reason to believe that the line must go through the origin.