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 of di xj22vy kmc;rn8wd(w:ghb79 zfferent object 8p2hb aklibmv--7w.t0 dy-i ys are independently measured. The graph is a plot of weight versus mass that -8wvty-dhpmibb 0-akyil7 2. 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 (*mtwtzx2r o(u*t 2m 5l0,0) as mass and weight are directly proportional. However it does not, so theret2t5 *z2(rxmom *ltuw 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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Post time 2024-8-21 21:38:19