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 differe 1 *r.kvp;47 24oorn b;fwbyrq c/yxuf nt objects are independently measured. T xe6l pefr*(,0lpljtqh 4p 35zhe graph is a plot of weight versus mass that includes e lteplq,l r*je3h4xz( p056pfrror 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, theo r +*;,annhl xr,(tff+shm*sg retically 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 point+h(,x,amngr;lrn tfh f * +ss*s all sit on a straight line which shows there is no appreciable random error. Hence C is correct.
| 
Post time 2024-8-21 21:38:19