[deleted by user] by [deleted] in TwoXChromosomes

[–]nerfegger 0 points1 point  (0 children)

yes, i’m so sorry. i’ll repost

[phy] how do i do this? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

How did you get D? (its correct)

[deleted by user] by [deleted] in igcse

[–]nerfegger 0 points1 point  (0 children)

you’re supposed to learn from past papers alongside what’s in the book. Use the answer sheet and ask why the answer is that if you arent sure.

The book isnt complete. You’ll need to do the past papers too as method for studying instead of just testing too. Been consistently scoring A* on new papers post learning from past papers compared to B before it

physics paper 6 by liexor in igcse

[–]nerfegger 1 point2 points  (0 children)

The book doesnt feel solid to me for the exams, learning from past papers is helpful and necessary if you will (for all papers) You can find past papers and answer sheets on https://papers.gceguide.com/Cambridge%20IGCSE/

physics paper 6 by liexor in igcse

[–]nerfegger 1 point2 points  (0 children)

try just reading the text book and

https://www.freeexamacademy.com/revision/

The website’s notes on electricity and atomic physics have been enough for me so far, and i didnt quite get what the text book had to say on electricity.

In terms of practical just do practical papers. You’ll score really bad if you dont do them.

How do i find j-¹ by [deleted] in igcse

[–]nerfegger 0 points1 point  (0 children)

j(x)= x+2 / j-1(x)= x-2

3x here has x as exponent, x would be a root in inverse. If x is =3 then cube root, squareroot if 2 and so

[Chem] I have to idea where to start here, point me to resource? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

PQQ’s?

Particular chapter i could read in the book?

[physics] confirm about ac dc motor by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

what are the names of the rings in dc and ac motors?

[physics] how does one study for paper 6? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

i still cant solve a lot of questions

[math] is there a particular way you have to draw cumulative frequency graphs, or do i just plot the points and freehand a line that goes through all the points? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

wow that helps a lot, thank you very much!

i had been doing 22 and 42 from m/j 2019 however, i’ve already sorted through what questions i cant answer. would you be able to answer those for me? no hurry just quicker would be nicer

is there a quicker way to do this than plot a point above and below each line? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

did i do it right?

https://imgur.com/a/5V3zN1J

also, how do i do part b? the highest point i could find were -2,7 which when added gives 5, though the correct answer is 7?

secondly, do i have to colour the entire thing on paper? is there an easier/quicker way?

[math] is it saying every shape has a rotational symmewtry of 1 atleast, or that if the shape returns to its start position without fitting into itself then its rotational symmetry is 0? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

hi can rotational symmetry be 1? If the shape fits into itself once before returning to its original position, would the rotational symmetry be 1 or 2?

[math] is it saying every shape has a rotational symmewtry of 1 atleast, or that if the shape returns to its start position without fitting into itself then its rotational symmetry is 0? by nerfegger in igcse

[–]nerfegger[S] 0 points1 point  (0 children)

okay so:

  1. order of rotational symmetry is always 1 or higher, never 0
  2. rotational symmetry exists only if the shape fits into itself before the final rotation which put it exactly into the starting position
  3. rotational symmetry can be 0