Physics: Post your doubts here!

[A*****]

Ok ....You are confusing me now.

View attachment 63555
found this in the marking scheme

Sorry for that

 

[Hamnah Zahoor]

Sorry for that

It's Ok

 

[FairyTail]

Anyways in the vernier caliper the uncertainty is there right
It says it's uncertainty in the side

 

[Kanekii]

Like l.c for metre rule is 0.5mm but for 1 MEASUREMENT we take 1mm...so I was asking if we do the same for caliper

Metre rule has uncertainty of 0.5mm but the fact that we take two readings it then becomes 1mm and for Vernier calliper we take one reading so its 0.1 mm

 

[angryrider_56]

I got this from an unauthentic source but this meets the criteria about what our teacher told us.....even tho i think this paper might be fake but it's a good example of what's coming tomorrow for sure!

 

[hancy pandey]

Potentiometer and oscillation are just random guesss or it's just sure?

 

[angryrider_56]

Whats coming for bio 34? Would be appreciated if you could tell

Slide preparation (not sure whether with cambridge's slides or yeast) and reactions with yeast (most probably a reaction where you have to measure time and pH)

 

[hancy pandey]

WOW....Great

 

[Kanekii]

I got this from an unauthentic source but this meets the criteria about what our teacher told us.....even tho i think this paper might be fake but it's a good example of what's coming tomorrow for sure!

Thanks alot
Dayum two graphs...

 

[Hamnah Zahoor]

I got this from an unauthentic source but this meets the criteria about what our teacher told us.....even tho i think this paper might be fake but it's a good example of what's coming tomorrow for sure!

OK now..... where did you get it from?

 

[angryrider_56]

OK now..... where did you get it from?

an online friend of mine (he is also the one who sent me the maths paper and you can find it on the maths thread)

 

[A*****]

I got this from an unauthentic source but this meets the criteria about what our teacher told us.....even tho i think this paper might be fake but it's a good example of what's coming tomorrow for sure!

Hahaha both qs with graph

 

[fatima_jawed]

I got this from an unauthentic source but this meets the criteria about what our teacher told us.....even tho i think this paper might be fake but it's a good example of what's coming tomorrow for sure!

I've done the first question before in class
It's from a past paper
June 2012 P31

 

[Kanekii]

Sorry to burst the bubble but yeah its fake Q2 is exactly from m/j 15 qp 35

 

[Hamnah Zahoor]

Sorry to burst the bubble but yeah its fake Q2 is exactly from m/j 15 qp 35

No you are not bursting the bubble you are actually relaxing me because when ever the paper is leaked the replacement is a way more difficult one.

 

[A*****]

And how to find the absolute uncertainty for an average value? Is it range/2?

 

[Hamnah Zahoor]

And how to find the absolute uncertainty for an average value? Is it range/2?

Well I have the same problem here.

 

[A*****]

Do we take the uncertainty in ammeter as ±0.02??

 

[angryrider_56]

Guys am sharing the paper to show y'all how our exam should contain (because i think ur teachers haven't told you the materials...) lol i never said this was tomorrow's paper. I also did both experiments at school before

 

[angryrider_56]

Guys am sharing the paper to show y'all how our exam should contain (because i think ur teachers haven't told you the materials...) lol i never said this was tomorrow's paper. I also did both experiments at school before

what our exam should contain*****