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 objectscoz pd5is3j3 /u 42iuv78x +g*p *p(qysiyuf5 ny gp3d are independently measured. The graph is a plot of weigq pp8y(gpx*s5ygfdn+ yi 73 u*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 line should, theoretically go through (0,0) as mmhi( t1bb-bu7h c;3i-1jaau mass and weight are directly proportional. However it does not, so there is ahb i;ub 73h 1mm-i1u(aa-bc jt 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.