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 different object8sa9r q d4e zdavv:.s:s are independently measured. 4ukd 3,yfe,q nn c6v;mThe graph is a plot of weight vers, eq,c;my6vnu4n fk 3dus 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 thro) 4snhg)ykc 4x)1hi) 6yqyt ohp fk-0sugh (0,0) 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 onpc-)0iy)6q f4 y14)gxsk) ts nhhhkyo a straight line which shows there is no appreciable random error. Hence C is correct.