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 oh1iebgn ) :9adi h :.qv:l7frup5s yr jn+19 qrkqvz+l 4fferent objects are independently measured. The graph is lq rnqzqspvf1 rryh +.l4:7: 9v5+ukj a plot 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 shoul + hyv 9 7i)hrxhvxm3f4susu;:d, theoretically go through (0,0) as mass and weight are directly proportional. Hv3shyiur+)fh79v:h s ux4 xm;owever 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 random error. Hence C is correct.
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Post time 2024-8-21 21:38:19