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 o -n updk /jttxeocy,r*xo)rcr9. 34 ;dw ;*sh abjects are independently measured. The gra -n)0zt5yqlcx q8 5cgb ph is a plot of weight versus mass that inclu xz lqyt8 bc)ng 50c-q5des 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, theoreticac 66 i*ef mmh(nw p:43f6,z2eymddbg upr,mo6lly go through (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 on a straight line which shows there is np:fd,gm* w64d (63m,een2f iycoz 6hub mmpr6o appreciable random error. Hence C is correct.
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Post time 2024-8-21 21:38:19