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 weigh5r4y.pd 3/rpcgljjx ff00d9dttqjx (nvn *fyj 5rn6f+c,e/g, s of different objects are independently measured. The graph is a plot of weight versus mass that inclf,jncgf e*(v rtj /y5,+x q6nnudes 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 iy*4idx3 :hc17 d,pcp pd5qsqmass and weight are directly proportional. However it does not, so there is a syste xsi3pdqdph5c1c iqp:, d4y7* matic 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.