2014年5月9日 · Assume you have all the uncertainties in the values in the formula and we want the uncertainty in s s = ut + ½at² Step 1. Add the % uncertainties in u and t to find the % uncertainty in ut Step 2. Multiply the % uncertainty in t by 2 (Rule 4 above) and add it to the % uncertainty in a to find the % uncertainty in ½at² Step 3. Convert those ...

2023年6月17日 · To find the absolute uncertainty in ½at 2 1. find the % uncertainty as I explained. 2. Then multiply the actual value you have calculated for ½at 2 by (the % uncertainty / 100).

2021年6月17日 · Combining errors/ uncertainties; This discussion is now closed. Check out other Related discussions ...

2019年6月8日 · The uncertainty for each individual thermometer is 0.25 not 0.5. 0.5 represents the overall uncertainty which is 0.25 x 2

2016年6月4日 · Total percentage uncertainty is found by adding the percentage uncertainties of all the measurements used to find the density. For a spherical object: ρ = M a s s 4 / 3 π r 3 \rho = \dfrac{Mass}{4/3 \pi r^3} ρ = 4/3 π r 3 M a ss Percentage uncertainty is the absolute uncertainty/mean value so you can calculate the percentage uncertainties ...

2018年5月2日 · For each capillary tube, there were three repeats, and I have found the absolute uncertainty in the measurement of the radius (combining the random and reading uncertainties), and the absolute uncertainty in the rise in water (h) (again combining random and reading).

2024年6月17日 · Absolute uncertainties are used when you combine the uncertainty in quantities you add or subtract. So if you had an uncertainty in a length of 5.0 ± 0.1mm and you added that to a length of 10 ± 0.1 mm the final value would be 15 ± 0.2mm Percentage uncertainties. If you have a formula where you multiply or divide, for example F=ma, then you ...

Yes, as the poster above suggests, take a look at the "sticky" thread (Combining uncertainties) at the top of this forum, which describes how to do this. If there is then anything you don't understand in that post, come back here and ask.

2023年6月26日 · Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you po

This question is checking whether you understand the connection between uncertainty and the number of significant figures used. 1.1 V has 2sf 0.4 A has 1 sf-so it could be anywhere between 0.350 and 0.449 trailing zeros AFTER the decimal point *are significant figures*-if you measured the current to higher precision you could write 0.40 (i.e ...