Kognity IB Physics A.0 Measurements & Uncertainty (id: d9eac2f7a)

admin

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 quantito 88 uq(dmo-fkmk*m ke:.i/vm0r.i rkf *ll-oy P pr n7ljg gt.l6p.+ a1qas quantity Q varies is plotted. Theory states that P should vary lin6l .gp.qpjg7+at nlr1early 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 gra+ yyzdms tyvf1s krn8 h6o:729phs 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 bessf hmyyr2tz 7 k8 +6sv1d:ny9ot 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.