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 weightsn7:*3a:c0t urp qn b3vtjis7s of diffnvx005ulrb 9ferent objects are independently measured. The graph is a plo bvu0 n5flx9r0t 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 d(3m3mouu-yi go through (0,0) as mass and weight are directly proportional. However it does not, so there is a syst3i3d-m(you muematic 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.