You measured a certain length 10 times (in cm): 24.25, 24.26, 24.22, 24.28, 24.24, 24.25, 24.22, 24.26, 24.23, 24.24. The mean value is: 24.25 Using the half range method, the uncertainty is: ±0.03 The standard deviation is: ±0.02     (reminder: such information can be found in the Lab Appendices Download Lab Appendices )多重下拉选择题

登录即可查看完整答案

我们收录了全球超50000道真实原题与详细解析,现在登录,立即获得答案。

类似问题

A student measures the mass of a weight with a scale.The scale reads 1.24 kg.What is the uncertainty in this measurement?

Question textAn engineer has devised a new technique to measure the acceleration of gravity (which has a known value of around 9.81 ms-2). They repeat the measurement 10 times, and record a mean value of g = 8.263 ms-2 and a standard deviation of 0.016 ms-2. The result should be reported as: g = Answer 1 Question 4[input] ± Answer 2 Question 4[input] ms-2 (mean ± standard deviation) The measurement could be characterised as having Answer 3 Question 4[select: , high, low] precision and Answer 4 Question 4[select: , high, low] accuracy.Check Question 4

A set of measurements of the ultimate tensile strength (UTS) of a new aluminium alloy gives an average of 574.16 MPa with an associated uncertainty of ± 11.56 MPa. How should you report this finding?

You may find it useful to watch the video below before attempting this question or viewing it on theBox here: . You use a meter ruler to measure the length of a metal rod. Select the most suitable category for the uncertainty in this measurement.

更多留学生实用工具

加入我们，立即解锁 海量真题 与 独家解析，让复习快人一步！