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 quanti lpei.c 6c,;m+rlw);1qh)n haivh s4styayqc++ ;,xqnd P as quantity Q varies is plotted. Theory states that P sc x;da+nq ,yq+hould 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 orku 4b+ de*l3h8in)p11u obk swigin. In physics many do not. e)o b3bphs k41u+i*dw l1u8k nBut 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 theoretical reason to believe that the line must go through the origin.