Kognity IB Physics A.0 Measurements & Uncertainty (id: b56f9bbaf)

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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 dif(zjxh y 0 3l0k tu2k6),czp6u wv7eqesferent obje4 r(* 2jlrsxy5xvrh5wymy 9o7cts are independently measured. The graph im(5xsovy2r 4xw*yh r 75yrlj 9s a plot of weight 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 mass and weigh(p p0svic(e/ ht are directlyeh /s0piv(cp( 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.