Physics: Post your doubts here!

[Ahmed kooheji]

yeh the whole paper i kind of couldnt complete on time. Q.2 was also on the tougher side. i drew the line of best fit and stuff. what was your gradient .
also i took the y intercept from the graph is it alright.[/QUOTE

yeh the whole paper i kind of couldnt complete on time. Q.2 was also on the tougher side. i drew the line of best fit and stuff. what was your gradient .
also i took the y intercept from the graph is it alright.

My gradient was 5.67 x10^-13 ... about the y intercept u had to use the formula (y=mx+c) cuz it’s always written in ms and examiner report

 

[ThePacifics]

its also written in a few they allow from graph like an ecf.

 

[Ahmed kooheji]

its also written in a few they allow from graph like an ecf.

Ok then it’ll be fine for u .. what did u get for % uncertainty in N ? I got 67% the calculation was complicated

 

[ThePacifics]

Ok then it’ll be fine for u .. what did u get for % uncertainty in N ? I got 67% the calculation was complicated

i couldnt do that one. i only wrote the formula and it was only 1 mark.

 

[ThePacifics]

do u think the gt would be low this year for paper 51 our lot didnt find it easy either sigh

Ok then it’ll be fine for u .. what did u get for % uncertainty in N ? I got 67% the calculation was complicated

 

[Ahmed kooheji]

i couldnt do that one. i only wrote the formula and it was only 1 mark.

Yeah that’s smart to sacrifice this 1 mark for 5-10 extra minutes .. I couldn’t recheck my planning question.. but I think I included everything I can think of ..

 

[Mts.99]

it'd be nice if someone answered this lol

looking through past marking schemes, they say ''do not penalise POT (power of ten)'' so it means its accepted both ways )

 

[Ahmed kooheji]

do u think the gt would be low this year for paper 51 our lot didnt find it easy either sigh

Yup it’s gonna be very low .. probably 19/30 for A .. I’m hoping for it to be lower so I can easily get A*

 

[hellodjfos;s'ff]

I hope it won't be like 43,44. How did the people in your school feel? Are you taking A2 as well ?

I am taking AS exams this summer. My AS batch felt it was really easy and A2 batch found it slightly difficult(this could be because they had a P5 clash so they studied more for P5 I guess).

 

[ThePacifics]

it has to be. the earlier past papers were still easier to deal with than this. istg yeh lets pray this year's papers gotta have lower boundaries for sure tho compared to last years

Yup it’s gonna be very low .. probably 19/30 for A .. I’m hoping for it to be lower so I can easily get A*

 

[Ahmed kooheji]

it has to be. the earlier past papers were still easier to deal with than this. istg yeh lets pray this year's papers gotta have lower boundaries for sure tho compared to last years

Just one more exam for me and I’m done with school

 

[hellodjfos;s'ff]

Oh but shouldnt other particles also gain K. E and it didnt lose mass though since mass number was constant?

You need to understand that during fusion, kinetic energy is always gained. The mass-energy was constant, not mass on its own.

 

[haithsoul]

PLZ HELP ME
i got an A overall in AS
but a B in p3
n in MCQs i got an A but m sure it was a close one
my theory went fine...ill get an 80 or above that
but i messed up my p5
i might get 21 or 22
can i still get an A*?
Zaki ali asghar Holmes haithsoul Error Syntax guys plz help

I fuking fcked it up this paper 5. you will get A* if paper 4 is really good or even above threshold. Boy what a day

 

[Tobaaaaay]

For paper 51 Q2 what was the percentage uncertainty?

 

[Ahmed kooheji]

it has to be. the earlier past papers were still easier to deal with than this. istg yeh lets pray this year's papers gotta have lower boundaries for sure tho compared to last years

Just one more exam for me and I’m done with school

For paper 51 Q2 what was the percentage uncertainty?

I got 67%

 

[Pravin Hapugaswatta]

for p52, could the expression for gradient have been Cln(E/(E-V)) almost everyone wrote -Cln(1-(V/E)) but aren't these both same?

They are the same..no worries

 

[ujjwal jha]

Yes bro, frequency increased. That was a bit of a trick, though it could've easily been noticed.

thanks bro. actually i initially wrote , it decreases . but later on when i checked i found out that it was just the opposite . i had my luck with me today. anyway how much are you expecting in this paper

 

[Kanekii]

You need to understand that during fusion, kinetic energy is always gained. The mass-energy was constant, not mass on its own.

Oh i see, Thanks

 

[hellodjfos;s'ff]

thanks bro. actually i initially wrote , it decreases . but later on when i checked i found out that it was just the opposite . i had my luck with me today. anyway how much are you expecting in this paper

I am expecting more than 55 out of 60. Very confident about it

 

[anastasia grey113]

I fuking fcked it up this paper 5. you will get A* if paper 4 is really good or even above threshold. Boy what a day

ohhh yh it was tough n yh same it dint go too well for me either
gonna get 21-22 for sure
n i think the gt is going to be low too
well it went the 'low 80s' good
n besides, my p2 in AS went well
i thought i would get something as low as 50 so yh i think i got a 98 or 100 in AS
idk how much i need now to get an A* tho :/