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 q(bjou x1k7cvtres -l,w* fq,6uantity Q varies is plotted. Theory states9o0m1xgaxw31rt sof(f i vq1j18pgo( that P1og0swto1gfr8px(3 ofq m 1xv(9ia 1j should 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 hot:7msrxu9r 6g j 8(/c/nxt egraphs 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 cej/rr8x9 t g6n(7hos :/mxutsystematic error only if there is good theoretical reason to believe that the line must go through the origin.