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 6 h ,hvzs.kg.1zfgs7l different objects are independently measured. -yh.c,l9:btn4f) j w tzfxa/ n The graph is a plot of weight versus m b )tyc. 9xjna4h:n wz,f/ tfl-ass 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, theoreticalls *p.cyr m0u2 v39t;g,tb e ggdfl.x8ry go through (0,0) as mass and weight are directly proportional. lp2gdgfgtx3 e t;.ys8r* mu.0rvc,b9 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