Physics, Chemistry and Biology: Post your doubts here!

[lol_lmao_lmfao]

here is a formulas sheet paper and explanations for phy igcse

 

[neumonia]

Accomodation in terms of the eye is how your eye accomodates itself when there is an external change.
For eg, while in a sunlit garden, lots of light will enter your eye and can spoil it's funtioning. So the pupil of the eye becomes small so that less light enters. Radial muscles relax. Circular muscles contract. R=R. C=C. All in bright light.
The complete opposite happens in dim light.

Thank you Phoenix Blood.

 

[Lola_sweet]

I'll give IGCSE English as a Second language (Extended) 0510, in the coming session May/June 2014. So I'll take paper 2 and 4 which are extended but I'm having trouble in deciding wether to take Paper 5 Oral or Paper 6 Oral Coursework. And Is paper 5 a part of the extended syllabus and has grades starting from A* like every Extended version? So Basically can I take paper 5 if em takin paper 2 and 4 ?

And are Scientific Calculators allowed in the examination hall for IGCSE Physics 5054? Because simple calculators don't have the appropriate functions that are needed for the exam.

I'm doing English as a Second language the extended in the May/June 2014 session and i'm also taking Paper 2 and Paper 4 with that i'm also doing the Paper 5 Oral Paper. So yes you can take Paper 5 with Paper 2 and Paper 4. However paper 5 is marked on the basis of 1 to 10 with 1 being the highest mark and 10 being the lowest. So when you get your results for english you will have your grades written and in a bracket next to it you will have your speaking grade.

About the calculators i'm pretty sure you can take scientific calculators. By the way are you taking IGCSE Physics 0625 or O-Level Physics 5054. Because in IGCSE you are allowed calculators.

 

[princess sofia]

hey guys i need bio n phys study guide urgently
where would i find it , i cnt find it any where on internet plz help !!

 

[Awesome12]

I can' t understand question 3 (c) in O/N 2010 paper 61. Could anybody explain it?

0.5 Io = 0.5*(3.0)
=0.15

The resistance value from the table shows that a 10.1 value for R makes 0.15 A of current flow in the circuit
Let the resistance of X be x
Total resistance in circuit = 10.1 + x = 2x

solve for x
10.1 + x = 2x
x = 10

 

[Lola_sweet]

The IGCSE Syllabus for physics 0625 have asked to "Recall and use the simple electron model to distinguish between conductors and insulators"
can anyone send me a link of what we must study here?
Thank You!

 

[Allah's Slave]

I'm doing English as a Second language the extended in the May/June 2014 session and i'm also taking Paper 2 and Paper 4 with that i'm also doing the Paper 5 Oral Paper. So yes you can take Paper 5 with Paper 2 and Paper 4. However paper 5 is marked on the basis of 1 to 10 with 1 being the highest mark and 10 being the lowest. So when you get your results for english you will have your grades written and in a bracket next to it you will have your speaking grade.

About the calculators i'm pretty sure you can take scientific calculators. By the way are you taking IGCSE Physics 0625 or O-Level Physics 5054. Because in IGCSE you are allowed calculators.

Thnx alot ! Em taking IGCSE Phy. 0625. Are you a school candidate?

 

[Allah's Slave]

Has anyone got the IGCSE ESL oral dates?

 

[princess sofia]

Has anyone got the IGCSE ESL oral dates?

yeah ,in buraidah we r gvn 13 april

 

[princess sofia]

cn any1 plz answer it dat how would we b makng da circuit diagram for Q2
thnx in advance

 

[Phoenix Blood]

Can anyone just mark it with the arrow and show me where we draw the arrow?

 

[Allah's Slave]

yeah ,in buraidah we r gvn 13 april

i haven't got the dates yet!!

 

[princess sofia]

Ha

i haven't got the dates yet!!

ve u got da statement if entry

 

[Phoenix Blood]

Here it is.

View attachment 37773

Why is that the root hair? Any other structures in this diagram? Please show

 

[Lola_sweet]

i haven't got the dates yet!!

Go to ur local british council and ask them! If ur a private candidate if not then ur school shld let u knw.

 

[Kimo Alazab]

somebody explain me hooke's law
#IGCSE physics??????

 

[princess sofia]

hey cn any1 explain me the wave theory especially the wavelet part , i never get it ...

 

[princess sofia]

somebody explain me hooke's law
#IGCSE physics??????

hookes law states dat extention of the spring is directly propotional to the loads dat cause dat specific extention untill limit of propotinality remains
the limit of propotionality is the point beyond which whn loads removed the spring loses its elasticity and so donot return to its orignal shape and size
hence the equation formed is F=kX
where F is the load hung , k is the constant and X is the extention
hope dat helps

 

[Phoenix Blood]

Epidermis has the root hair cells.

THANKS!

 

[shoaib672002]

Please Help , how to do this