Absolute, Fractional, and Percent Uncertainty (With Examples) - IB Physics

0:00 Overview of 3 Types of Uncertainty
0:37 Example of all 3 Types
2:56 Absolute vs. Relative Uncertainty
3:53 Converting Uncertainties
4:20 Units and Uncertainty
5:41 Significant Figures and Uncertainty
6:31 Examples: Absolute Fractional & Vice Versa
7:28 Examples: Fractional to Percent & Vice Versa
7:52 Examples: Absolute to Percent & Vice Versa
8:42 Examples: Rounding to Correct Sig Fig

[ferdlc]

my god I finally understand the difference. I was confused on whether they were all different values but you clarified that they are all the same uncertainties just expressed in different form. Thank you so much

[elijahcamcam]

This has helped so much thank you for your video!!!

[tahiranwar]

Oh sir and finally I understand thank you very much

[nhaz]

as for the unit, im still confused at where should we put it... cuz in the practice example, the units were written beside the uncertainties. kindly advise.

[CyprianKosi-wsvc]

Excuse me 🖐️
Th last example you did for number 2 on both sides - 1874+or-40: why did you round the number uo to 3 significant figures? and 990+or-6 : why did you round the uncertainty to 1 significant figure?
Thank you 🙇🏻‍♂️🙏

[zgobbln]

But why wouldn't you use the full range of the number to express the fractional uncertainty?

[zunaira]

You just taught 30 min of content in just 10 min.

[parameshwarhazra]

please sir can you recommend a book based on the basics of uncertainty, errors and graphs for physics lab? lots of love from India

[ammar]

Hi! I'm from Pakistan and I'm in highschool. This isn't even in my syllabus, but as I was studying difference between error & uncertainty I was curious (as I love physics) about these uncertainties.
You helped me a lot Sir. Thanks

[amazinghdhadley]

Im confused — I got 4/pi on the exam, and I thought I explained it thoroughly. Isn’t the fractional uncertainty (delta(A))/A. ?

Where A = the area of the circle
Delta(A) = the uncertainty of the area

???