Kognity IB Physics A.0 Measurements & Uncertainty (id: b56f9bbaf)

[单选题]
The masses and weights of )nn5nh9obcqv 7kh 6cvrb9a ,6 different objects are independently measuredepgr.3fh1gp ,. The graph is a plot of weight versus mass that includes error bg.hr p3pg1,ef ars.

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 shouitr/ck5t x ,o9ld, theoretically 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 no appreciai9crtx,o/5kt ble random error. Hence C is correct.