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 d rels 9:yi/jhup93 gjv8ay51 jiffere c8wrjnk db3x l(,,gv4iw,j3jnt objects are independently measured. The graph is a plot of weight versus 8 (jjjxv 3,4dgb3,,i cnwklwr 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 goz45igf7f+2 z ojf qik, 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 no apif4qk 5o7g2 + zjffiz,preciable random error. Hence C is correct.
| 
Post time 2024-8-21 21:38:19