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 different objects are independently measured. Th 1:szr l:dz7 / g1u;pokekwg7q e g cea kxzd-kmk i..,;zpe1.mh 5raph is a plot of weight ve k m5,ek.pe- zdc mk;1xi.z ah.rsus 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) jmcx0-j t -6fiy dgx7; ix;wb0as mass and weight ; ji t6-x;7w xxfj0gm 0yid-cbare 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 appreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19