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 weigh knvsv0. 2c v)do-1e ywts of different objects are independently measured. The g n9 d q88s69tw pul,cqmm/nsg5raph is a plot of w gm8/nwt,5l6qn9 dqsp 9csm8u eight 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 should, theoretically go through (0,0) as mao2qar zi20. o;khj*p ass and weight are directly proportional. 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 ap0 q ipr;ao.22z*oajk hpreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19