Kognity IB Physics A.0 Measurements & Uncertainty (id: b56f9bbaf)

admin

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 ocu1xfz5m*vpan 5,/e*hmb/ r n bjects 9u1j o4k apqr+are independently measured. The graph is a plot of weight versus mupqk1a94r oj+ ass 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 lineai4jo (c+voirl/g5wmj g 2x23 should, theoretically go 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 no appreciable rando g3l (2 jwjic2or5ga4/+mo ivxm error. Hence C is correct.