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 weight+6cv5kip aoh, m nu8pnhqe)dw;7tt-. s of differegia dd.3 - kmaj/ps+x6nt objects are independently measured. The graph is a plot of weight versus mass that g6 di-pdk x a.m/sj3a+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)tb./ gj (*owxi 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 s/ (bxwgjit o.*hows there is no appreciable random error. Hence C is correct.