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 objects are i w (2 ud:yy i.7org2orcazb8w*ndepender dft fjd7a218ntly measured. The graph is a plt df872jf rad1ot of 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, theoretically gob-qg4s,hubt qeqoxj2 dv62- 1 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 poinj q6g,eb2ho1- t q4su2qxd vb-ts all sit on a straight line which shows there is no appreciable random error. Hence C is correct.

微信扫一扫，阅读更方便