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 inde 551:c y*hwss:gtxlf c pendently measured. The grap f:5shgcwtyc sl: 1* 5xl xqh15d ildva2 7;je4h is a plot of weight versus mass th a27l xqd;dil4v1he j5at 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, theoreticallyup)b0lcsu .0d 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 lp.sub0c0u) dis no appreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19