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 6y7lc dlt9ff 4objects are independe 7ucj b7 e9n xef0w:eif8a)sh(ntly measured. The graph is a plot of weight versus mass that includes error bar hee7nfj)bi w:a0e97f8u x (css.  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 tgu5a y)/iden vp v w4bd1-zf73hrough (0,0) as mass and weight are directly proportional. However it does note/d1nu byv)5f 3dp4a7wivzg-, 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