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 ofi:dyp; z(ewr0 d8d dvp ba 9f+pei4h7j+ifferent objects are independently measured. The graph is a plot o+j8e47p9 a d hdfipbv+f 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, theoretical8 -yyveq/2agu.yhdyf2 l;r n)ly go through (0,0) as mass and weight are directly propoyv)y2 fur 2gyy8qh-el/an;d.rtional. 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 no appreciable random error. Hence C is correct.