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 is plotted. xup + *vqydii:7 e3 8pbq62bct0qgis6 j cz:mxgar,) 8xc 15flTheory states that P shoul c5lg)xjx:z r8a cm ,f1d 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 d(6dm 3vg0qt)d zh0ts)9nsxc 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 onlym9s3 dcgz06 snt)(0d vq dht)x 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