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 differen 5nrl .2p zzsetp26o m;t objects are independently measured. The :nc7rtj05u5 d1 vrupsgraph is a plot of weight versus r:ut17dcr0nv j5sup5 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 (0,0) as mass a 2 q-ljg74ubmd9itx);/b ai: 5jra zicnd 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 random error. Hence C is )c;aj/-j tz2iigx7bb: a l ur49diqm5 correct.
| 
Post time 2024-8-21 21:38:19