本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics
[单选题]
An experiment used to measu3,hjblh ,c +j.n 7v g/era,ktfre the accele. *t.bhdn3x ro +kre(jration due to gravity produces the following re b+r xtnh(e3*k dr.oj.sults:
$\begin{array}{llllllllll}7.83 & 6.98 & 7.52 & 8.01 & 7.76 & 7.15 & 6.87 & 7.25 & 8.35 & 7.54\end{array}$
Which of the following statements is true about these data?
Are there random or systematic errors, both, or neither?
(Acceleration due to gravity, $g$, on Earth is usually taken as $9.81 \mathrm{~m} \mathrm{~s}^{-2}$ ).
A. There is a large random error, but no systematic error.
B. There is a large systematic error, but a small random error.
C. There are large random and systematic errors.
D. There is a small random error and no systematic error.
参考答案: C
本题详细解析:
There is significant variation between the individual data pt9-q) f5l houxoints, suggesting a large random error. Also, the values, as well as the average value, are far from the a9h xotf) lu5-qctual value of $9.81 \mathrm{~ms}^{-2}$, so a large systematic error appear to be present.
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Post time 2024-8-21 21:38:19