A2 PHYSICS Paper 4 Section B!! help needed!!!

[maxmus]

Hi,
the paper 4 in a2 physics has an entire 30 mark section B based on applications!!
Could anyone tell me what are the most important topics to be completely revised for this section?

I'm guessing, Mobile Phones, Op-amp and X-Ray/NMR??

 

[Mustehssun Iqbal]

Hi,
the paper 4 in a2 physics has an entire 30 mark section B based on applications!!
Could anyone tell me what are the most important topics to be completely revised for this section?

I'm guessing, Mobile Phones, Op-amp and X-Ray/NMR??

Questions on Ultrasound also appear frequently in section B of A2 Physics...

 

[maxmus]

Questions on Ultrasound also appear frequently in section B of A2 Physics...

Didnt see any in M/J 2011 or O/N 2011? :S

 

[JohnChemistry]

Hi,
the paper 4 in a2 physics has an entire 30 mark section B based on applications!!
Could anyone tell me what are the most important topics to be completely revised for this section?

I'm guessing, Mobile Phones, Op-amp and X-Ray/NMR??

Have you read this booklet? It's got everything in it.
The most important topics? I don't think there is one. I've done all the past papers and Ive seen everything in at least one paper. From opamps, mbiles, remote sensing (xrays, mri, etc). If you haven't read the booklet, take a look at it.

Hope this helped!

 

[maxmus]

Thanks!! Tho already have the booklet

 

[deelo1993]

the booklet is just confusing! anythin simpler? :/

 

[samwickz]

http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_s07_qp_4.pdf
Q3b any 1 out there goody good in physics calc? cuz i kinda dont do maths and ya stuck with this qz
help me pretty plz d marking scheme ans aounds lyk greek 2 me

u dont get much threads 4 A2 physics so ya sorry 4 interfering! but i really do need help

 

[deelo1993]

http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_s07_qp_4.pdf
Q3b any 1 out there goody good in physics calc? cuz i kinda dont do maths and ya stuck with this qz
help me pretty plz d marking scheme ans aounds lyk greek 2 me

u dont get much threads 4 A2 physics so ya sorry 4 interfering! but i really do need help

I had a problem too but then figured it out
u should count the no. of squares in order to get the area. I got 21 cm2.
now u shld calculate the potential difference represented by 1cm2.
1cm2 = side2 * side2
= (2.5*10^3) (1*10^-2)
= 25 V
now multiply the total are u calculated first (21 cm2 ) into 25V
21*25 = 525 V
hope i helped

 

[samwickz]

I had a problem too but then figured it out
u should count the no. of squares in order to get the area. I got 21 cm2.
now u shld calculate the potential difference represented by 1cm2.
1cm2 = side2 * side2
= (2.5*10^3) (1*10^-2)
= 25 V
now multiply the total are u calculated first (21 cm2 ) into 25V
21*25 = 525 V
hope i helped

thanxxxxxxxxxx alot wippy i finally got it thanx ur d best

 

[deelo1993]

thanxxxxxxxxxx alot wippy i finally got it thanx ur d best

anytime