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 diffe d0xn;cy-) 5o/sxxxpa bf*:c i rent objects are id hi 8z.)imb2 ig m :yz+l:b+n)bdsw6independently measured. The graph is a plot of weight versus mass that includes error ba idybdw s. )il+zzgiih6+2 :b:nmb m)8rs.  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, theo4 x yqrf:6y3 t.ojnx.yretically go through (0,0) as mass and weight are directr.6 xf3.nqjytoyx4 y:ly 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 appreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19