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 of differ8 vp1+zls(xj3:pp drv ent objects are independently measured. The g3( o ppf0jzp)o3w0:uqlk 9sn(jvi,s zraph is a plot of weight verp,vp o9 kq(psu 03jfi slo0wz):j z3n(sus 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 should, theoretically go through (0,0) as mass8gxcsf 1:u4ah k(7dp*+v.yda sberx 7 and weight are directly proportional. However it does not, so there is a systema:xbaa7+ck ey xs ufsr7vg8d1.4(hp*dtic 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.