Physics, Chemistry and Biology: Post your doubts here!

[SIstudy]

here's one fr physics

 

[SIstudy]

And a formula sheet fr Physics

 

[GorgeousEyes]

And a formula sheet fr Physics

thank you

 

[Lightning soul]

here's one fr physics

And a formula sheet fr Physics

Thanks needed these

 

[GorgeousEyes]

http://www.passmyexams.co.uk/index.html check this guys for physics and Biology
http://studyguide.pk/?p=237 check this for paper 3 physics .
file:///C:/Users/ngc/Downloads/BarCharts%20QuickStudy%20Physics%20Equations%20&%20Answers.pdf

 

[Rockzstar]

does any1 know what are the main topics for paper 3 ??

 

[fatimanasir]

what diagrams r important for bio paper 3 ?

 

[tanuyshka]

Yes, and what are the hardest topics to revise for bio paper 3? pregnancy, nervous system, or what?? Pplz help, i'm so nervous!!

 

[The Weird Guy :P]

Assalam-o-Alaikum.
Post your Physics, Chemistry and Biology doubts in here and members, along with me will try their best to help you out.

Hahahaha!
I had a discussion with my friends about how smart most Egyptians are and look what we have here.

 

[Timi Adeg]

How do the thresholds work for the phy, bio & chem if you do p1, p2, & p3. Can anyone predict what I need to get for an A in them

 

[zara.f]

can anyone pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee help me wid inheritence in biologyyyy!!!!!!!!!!!!!!!!!
i knw 2moro is maths paper 4/3 buh m done revising for dat i wnt *SERIOUS* help in inheritance day after 2moro is bio paper 3 dats y

 

[Lightning soul]

can anyone pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee help me wid inheritence in biologyyyy!!!!!!!!!!!!!!!!!
i knw 2moro is maths paper 4/3 buh m done revising for dat i wnt *SERIOUS* help in inheritance day after 2moro is bio paper 3 dats y

What part of inheritance do you need help with?

 

[zara.f]

What part of inheritance do you need help with?

everything in inheritance

 

[zara.f]

oh n cn ny1 explain 2 me wt actually allels are?! jus dnt seem dnt get da hang of it :/

 

[zara.f]

Yes, and what are the hardest topics to revise for bio paper 3? pregnancy, nervous system, or what?? Pplz help, i'm so nervous!!

as far as i knw structured questions on mensuration n pregnancy do come!! n do focus on topics of plants n do as much past papers as u cn *AFTER* revising completly n testing ur self on hw much u knw as per da syllabus *GOOD LUCK* God will help jus stay confident

 

[oahmed64]

Q1. a) av.speed= (v+u)/2
=15m/s
b) a=(v-u)/t
a=(20-10)/60
a=(1/6)m/s2
distance=ut+1/2at2
=(10*60)+1/2*(1/6)*(60)2
=600+300
=900m

Q2. t=(v-u)/a
t=(1100-600)/10
t=500/10
t=50h

Q3. t=(v-u)/a
t=(0-20)/-5
t=-20/-5
t=4s.

i didnt get question 2 could u reexplain it please

 

[oahmed64]

Answer to Q2 is wrong in terms of units. It should be 50 seconds, not 50 hours. Because the acceleration is 10km/h per second, not 10km/h per hour.

distance=ut+1/2at2 how did u get this equation?
h

 

[tanuyshka]

as far as i knw structured questions on mensuration n pregnancy do come!! n do focus on topics of plants n do as much past papers as u cn *AFTER* revising completly n testing ur self on hw much u knw as per da syllabus *GOOD LUCK* God will help jus stay confident

Thanks so much Good luck to all of you too!

 

[Poojaa]

I know this is a little late, but for bio, focus on the questions on plants (nutrition, limiting factors, growth.) I personally find them a bit tricky! And read up on antibiotics, bacteria, and genetics, as if they ask questions on these topics they usually hold quite a few marks. For the inheritance unit, you should know how to do the genetic crosses, and know about the female hormones and how they change in conc, the role of the placenta, amniotic sac. The enzyme chapters are also important! Especially for digestion, know all the conversions.
Finally, just keep calm, and don't worry too much! Good luck!

 

[zara.f]

Thanks so much Good luck to all of you too!

no problem