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 weights ona wxg -1ko:b6 bc r4*miii/(al6fwp)5it;lrfob evf0 *2i*2ycg isv+ xc-7gu different objects are independently measured. The graph is a *vy0c2fsi 2i*ux-o+c gv b e7gplot of weight versus mass that 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 shoulz80d -tg g isb:tg -cp.o2lqu4d, theoretically go through (0,0) as mass and weight are directl - s4ib8 cgtuot0-p d2g:q.lzgy 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.