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 isxiuu29ll6 mg/ 5lyqx5 -vqhr 7 ploqb* ;q wge *qls) stwtpvs 80w3)jcd( .-u/lfqtted. Theory states that )d.fqlu;3lv*cs8-) bst j (pwqwtw / qs eg*0qP 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 graphs must go through the origin. In phym:v ;c qg,y1disics 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 mgv 1:y;c ,iqdgood theoretical reason to believe that the line must go through the origin.