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 weight tr h5y8vjtqrza+:d4 .ci6a3ys o4sctx90 4 d(h rk+ggbux3y9nh f different objects are independently measured. The graph is a plot of weight versus mass (d9g03b hu+cgxh4 sxk ny4rt9that 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 through (0,0) as mass and lzlotyg .j;zm;+8x;2yfn-l eweight 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.etmyz-+; fo l8y2zgll;n ;x j there is no appreciable random error. Hence C is correct.