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 d21 oioz8ub *1zd cs)u xad47t are independe d fqu/npjhz/z. ,o h6xxka1 ,8ntly measured. The graph is a plot of w 6h .uoahxqzz/8 ,n1 ,df p/xkjeight 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 throughh* yfbp8)u2t7iz- 5iinohwcrq.9tl ) (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 apprecirht2 c5u*to. zihn)il8f-9 ywp )bq7iable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19