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

[单选题]
The masses and weights uxdm*-cct(4u o;p9wzk top1-b/ b3 mfif different objects are independently measured. The graph is a plot of weight versus mass tbm-ko p1 9wb/t3;ipzf hat 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 shoul2kpg68ee n3kb h3wpf*d, theoretically go through (0,0) as mass and weight are pe*gkk2pfn8bwe63h 3 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 shows there is no appreciable random error. Hence C is correct.