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 lbsw+g8 60bno6 d/h ftobjects are independently measured. The g t4+knqxgc v41j *:sek1e;hlp raph is a plot of weight versu k+psc4 1;k*g:n tqxljvh ee14s 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 thrkj0sb po i.-ppf3fssfls(d*t+5tbr n z1 0; e/ough (0,0) as mass and weight are directly proportional. However it does not, so there is a systematic error. On the other hand th/s ;d fe1 0.bo+jr05-snlppspf3*zst(ftkbie points all sit on a straight line which shows there is no appreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19