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

admin

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 different objects:p-e)938+ttr6qcbbn6 wbrud x *bif w are indepeyg nvzsf+2,k8 nqr) d1ndently measured. The graph is a plot of weight versussy1g z2n8v) fn k+,qrd 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 (i ,lkryy .h) kn6,p; uw(bn2oz0,0) as mass and weight are 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 randomky;nyi 6 ,r(nk)pb.h,zl 2ouw error. Hence C is correct.