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 differe ze3z k9j4t6wnhp( /k mqwh)x61jtzn,med7 e7nt objec r5h8yfv,7tcm.a2lig ts are independently measured. The graph is a plot of weight versus mass 5, ayr vm i8lc2.7thgfthat 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 thret *xn)kbd 29uough (0,0) as mass and weight are directly p 9tb)*nd x2uekroportional. 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