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 2jj1+ 8o(gl xn jozc*qobjects are indeuq2o/, 4f 0xyc6j3dddv0so brpendently measured. The graph is a plot of weigfjodc3q0 4,6dxsd /v20uroyb ht 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 linc 5scl)yj xpx :7:xgu3a(a4tce should, 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 straight line which shows therexj3p g7t5(a: x4syucxal: )cc is no appreciable random error. Hence C is correct.