Kognity IB Physics A.0 Measurements & Uncertainty (id: c96f664d5)

本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IB物理学

[单选题]
The masses and weights of different objects are indepe0rn9pj*)y(oi fzy 9yfndently measur7(m 2pd 1rpntzst/ kz3ed. The graph is a plot of weight versus masr3/z tzsnk7 (p 2t1mdps 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:il osfl(7- a bhq:x9t5qbs*7trd. af 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 there is qa:bflbf( qoa .xs79d:sh i5tr7lt- *no appreciable random error. Hence C is correct.

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