Kognity IB Physics A.0 Measurements & Uncertainty (id: b56f9bbaf)

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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 weigh6 p;go 4)e.eufla3 ivc yuivt m-4t)g:ts fhs3(dcdy lu8* 6eyi:of different objects are independently measured. The graph is a plot of weight versus mass that inclusc8ldyuf6 i3y(eh:d *des 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,m8mvk *69m lu(yra j5pyt,z m:0) as mass and weight are directly proportional. However it does not, so there is a systeaj v* p8z:km6l(,y5mmtr9 uymmatic 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.