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Edexcel A2 Physics Practical paper help needed

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Deadly_king:
This may help you learn how to answer these sorts of questions ;)

MKh:
Thanks :D

Some more doubts please:

Compounding uncertainties

When compounding uncertainties, can we compound the absolute uncertainties involved first or is it necessary that we compound the percentage uncertainties involved?

Although it is not very common in physical investigations, when we add two values, we must add the uncertainties/%uncertaintes involved?

When we multiply two values, then also we add the uncertainties involved or is it any different for this case?

I hope u understand what i m asking here.
Exams r close and u helped. JAZAK ALLAH.

Deadly_king:

--- Quote from: MKh on January 14, 2012, 06:26:18 pm ---Thanks :D

Some more doubts please:

Compounding uncertainties

When compounding uncertainties, can we compound the absolute uncertainties involved first or is it necessary that we compound the percentage uncertainties involved?

Although it is not very common in physical investigations, when we add two values, we must add the uncertainties/%uncertaintes involved?

When we multiply two values, then also we add the uncertainties involved or is it any different for this case?

I hope u understand what i m asking here.
Exams r close and u helped. JAZAK ALLAH.

--- End quote ---

I guess you already had these notes :P

https://studentforums.biz/sciences-149/uncertainty-cie-physics/

http://www.saburchill.com/physics/chapters/0068.html

If you don't understand, please let me know :)

MKh:

--- Quote from: Nelson Mandela on January 15, 2012, 05:40:31 am ---I guess you already had these notes :P
https://studentforums.biz/sciences-149/uncertainty-cie-physics/
http://www.saburchill.com/physics/chapters/0068.html
If you don't understand, please let me know :)

--- End quote ---

Oh yes, I do. I saw these in late october and saved the webpages as a fav. Forgot about them.
Sorry, my bad.
Thanks for reminding me.

Deadly_king:

--- Quote from: MKh on January 15, 2012, 10:04:21 am ---Oh yes, I do. I saw these in late october and saved the webpages as a fav. Forgot about them.
Sorry, my bad.
Thanks for reminding me.

--- End quote ---

You're welcome :)

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