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 different objects are independently mea5 er3a.7i qltf;:kh ossured. 4 let hpnh*-fs5/t egxfg31cw 7qoq). The graph is a plot of weight versus mass tha woe p.s /4h7tx3fqh -5qtnc1g)*geflt 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 shou8u gx7 kg1wdi,x n m+cw90/smjld, theoretically go through (0,0) as mass and weight are directly proportional. However it does not, so there is a systematic error. On the other hand the points all sit on a strai9ui1 8+/x0wgm wj sxd,ck7gmnght line which shows there is no appreciable random error. Hence C is correct.