本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IB物理学
[单选题]
The masses and weights of differ qi/+ngwau48 a ent objects are indepe hy/c)m qcj/m;g;2 j gendently measured. The graph is a plot of weight versus mass that includes error bar gje;m/cyjmq2 ) g/c ;hs.  What do these experimental results suggest?
A. The weight of an object is inversely proportional to its mass.
B. The measurements show a significant random error but small systematic error.
C. The measurements show a significant systematic error but small random error.
D. There is no correlation between the weights and the masses of the objects.
参考答案: C
本题详细解析:
We know that the lin)jbd5jxrgy(mq0offy2 n *nc0:/n*qse should, theoretically go through (0,0) as mass and weight are directly proportional.j0c:b 2 o sny)r nqyf0(5*xfdqj*mg /n However it does not, so there is a systematic error. On the other hand the points all sit on a straight line which shows there is no appreciable random error. Hence C is correct.
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