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 dif pdwwo/)q /1n nfer :q6k.pn liz g8a+ a3vdx) gk-yent objects are independently measured. The graph is a plot of weight versus mass that ld3g6:a8y ) a.pzi+ngq- v xkkincludes 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 through (0,0) a6og 4s08k2nm )jfs8)eh vyyyz g)zm ;ws 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 eh64y8vs)mzs 2fy; o wnzjy km)g)0 8gshows there is no appreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19