本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics
[单选题]
The masses and weights -qi ho qrkw85b33wld: of different 5xj xihp/8fcr- 7ce e8 objects are independently measured. The graph i erf x8p-e57hc/j ic x8s a plot of weight versus mass that includes error bars.  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 line sc8wt7tz.5/o ) lwos 4 k;vnj3yumxr wl5tt6)o hould, theoretically go through (0,0) as mass and weight are directly proportional. However it does not, so there is a systematic error. On th cv5) kjx onstwmt/w 4r65yw8zt l3outol;7).e 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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Post time 2024-8-21 21:38:19