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 z:9z is: pdp 4sjk5fpss7et,:P as quantity Q var 31 -wogw0 qm+/d aglcw v;bo7jies is plotted. Theory states that P should vary line ; w31jvbgo7+mwa-lwodg qc0/ arly 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 .n+wdpv e:z qf3;k.fsmust go through the origin. In physics many do not. But the scatter of the points suggests there are fn+d;fzwk.:.s3 vpeq 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.
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Post time 2024-8-21 21:38:19