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 a5vjy ef yom ..d2pc8 ;zc6k(bls quantity Q varies is plotte4oxkrh.s u5 6: xe*lsj5m9:mbmi 8rhfd. Theory states that P sho s69x5i:jhr85elrxmb4o* :umks.fm huld 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 t43 owe+b3 h+e tdzc/irw7c fe.hat all graphs must go through the origin. In physics many do not. But the scatter of the points suggests there are signii4dbrefo3wt7h+ .c + ec3/z ewficant 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.