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 weighmd(omxvh hhpj 9w7 77.ts9(p dkp 7z7q:vb:jfjn of different objects are independently measured. The graph is a z7jp :jv9: pdkb 7f(nqplot 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 t 8 2wdit 9wpxz68(jhtfhrough (0,0) as mass and weight are directly proportional. However it does not, so there is a systematic error. On the oxd i(h6 8f9zwjt2pw8t ther hand the points all sit on a straight line which shows there is no appreciable random error. Hence C is correct.