You are Here: Home

# Current Year 11 thread mark III (woo!) / Year 12 2012/13 Tweet

Discussion for GCSE students, including those studying for IGCSEs and O Levels.

Announcements Posted on
TSR launches Learn Together! - Our new subscription to help improve your learning 16-05-2013
IMPORTANT: You must wait until midnight (morning exams)/4.30AM (afternoon exams) to discuss Edexcel exams and until 1pm/6pm the following day for STEP and IB exams. Please read before posting, including for rules for practical and oral exams. 28-04-2013
1. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
Right everyone here goes. It was sooo hard. So this is the answers i can remmeber and the questions i think it was.

UPDATED
I think these are in the right order

1a) Towards the centre of the circle (1)
1b) Tension in the rope (1)
1c) Because changing one of these would affect the centripetal force and the speed of the bung and they did it so that there was only one independent variable. For example, if the mass of the bung increased, the centripetal force needed to keep it moving at the same speed would need to be increased (2)
1d) So that their results were more reliable (1)
1e) continous, dependent(1)
1f) The bigger the centripetal force, the faster the speed needed to keep it moving in a circle (1)

2a) They suspended the card from a pole (the pole went through the hole) and the card came to rest with it's centre of mass directly below its point of suspension. It did this as its weight had had a turning effect that returned it to its equilibrium position. Then they drew a line vertically down using a plumbline. Then, the repeated the proccess from a different point on the card and drew another vertical line down when the object came to rest and the place where the lines meet is the centre of mass (3)
2b) they could test that the position is accurate by balancing the point where the lines cross on a pointed object like a sharp pencil. If the centre of mass is in the correct position it will balance, if it isn't, it won't (2)

3a) gravitational attraction between the satellite and the earth (1)
3b) No, because geostationary satellites orbit the earth once every 24 hours not twice every 24 hours. (2)

4a) This happens because of the motor effect. The wire moves upwards when the switch is closed because current flows through the circuit and a magentic field forms around the wire and this interacts with the magnetic field from the magnet and repulses it so it moves upwards (2)
4b) The motor effect (1)
4c) The wires direction of movement would be reversed five times every second (2)
4d) I cant remember this question but it was something to do with increasing the frequency. So here goes: The wire would move back and forth quicker and further (2)
4e)0.005 N (2)

5a) The maximum loudness of the notes are the same as they have the same mixmum amplitude (1)
5b) The first notes is a smooth sound whereas the second notes is a sharp, brassy sound (1)
5c) The amplitude (1)
5d) Because they can only hear sound including and above 48 decibels so they need people to talk louder than in a normal conversation because the normal conversation is 45 decibels (2)
5e) Crosses across twenty from 250-20000 Hz (1)
5f) Because it can damage their hearing (1)
5g)Because in the hall the sound will reflect of the walls meaning that the sound is louder (1)

6a) step up (1)
6b) because there are more turns on the secondary coil than on the primary coil (1)
6c)because it is a magnetic material (1)
6d) 60 turns (2)

7a) diverging lens (1)
7b) line from object through centre of lens. line focus thorugh the point where a line from the top of the object meets the vertical y axis. Arrow where they meet (3)
7c) 0.5 (2)
7d) because the image is formed on the same side of the lens as the object (1)

8a) the star runs out of hydrogen to fuse together in its core (1)
8b) The star expand, becomes hotter and then cools to form a red giant. It then contracts and cools even more to form a white dwarf. (3)

I think i got 32/45 i think i dropped 13

Here is what i think i dropped

1c) Because changing one of these would affect the centripetal force and the speed of the bung and they did it so that there was only one independent variable. For example, if the mass of the bung increased, the centripetal force needed to keep it moving at the same speed would need to be increased (2)- Lose 2
2a) They suspended the card from a pole (the pole went through the hole) and the card came to rest with it's centre of mass directly below its point of suspension. It did this as its weight had had a turning effect that returned it to its equilibrium position. Then they drew a line vertically down using a plumbline. Then, the repeated the proccess from a different point on the card and drew another vertical line down when the object came to rest and the place where the lines meet is the centre of mass (3)-Lose 1
4a) This happens because of the motor effect. The wire moves upwards when the switch is closed because current flows through the circuit and a magentic field forms around the wire and this interacts with the magnetic field from the magnet and repulses it so it moves upwards (2)-Lose 1
4c) The wires direction of movement would be reversed five times every second (2)-Lose 2
5b) The first notes is a smooth sound whereas the second notes is a sharp, brassy sound (1)-Lose 1
5d) Because they can only hear sound including and above 48 decibels so they need people to talk louder than in a normal conversation because the normal conversation is 45 decibels (2)-Lose 2
5e) Crosses across twenty from 250-20000 Hz (1)Lose 1
5f) Because it can damage their hearing (1)-Lose 1
8b) The star expand, becomes hotter and then cools to form a red giant. It then contracts and cools even more to form a white dwarf. (3)-Lose 2

PLEASE MARK THIS AND LET ME KNOW HOW YOU THINK I'VE DONE, WHERE YOU THINK I HAVE DROPPED MARKS OR GAINED MARKS AND WHY BECAUSE I DID SPEND THE TIME TO COME UP WITH THE MARK SCHEME
2. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by mandi21)
Is anyone here doing ICT on Friday?
I am too
3. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
Physics was a pile of bull****
4. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
i still think i got between 26/8 what is that as a grade??

also is there a P2 unofficial mark scheme??
5. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by mjordanjnr)
I am too
Oh awesome, how're you feeling about it?
6. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
I plan to do bio and chem in A-levels how ever my results are like this (just 4 science)
Core science:- A by the end of the year
Additional Science:- C maybe a B (that is if i got an A in my resit which i highly doubt)
My dream 6th form asks for BB what do i do? Should i sent them an email or call them up or ask my brother to convice me to get on the course?
7. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
I've hardly revised for it so I'm hoping that common sense will get me through it :P
8. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by lil-mazie)
I plan to do bio and chem in A-levels how ever my results are like this (just 4 science)
Core science:- A by the end of the year
Additional Science:- C maybe a B (that is if i got an A in my resit which i highly doubt)
My dream 6th form asks for BB what do i do? Should i sent them an email or call them up or ask my brother to convice me to get on the course?
Call them up because a C if you want to continue any science at A-level is bit risky and most 6th form do not allow it at all... My sister got an A and a B and she was not allowed to take physics or chemistry just biology because it is "supposedly" the easiest. But I'm sure if you call them up and ask them, they will tell you what they think. It really depends on the school.
9. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
Same...the only revision I did was the hours before my exam I was so glad it was later on during the day rather than at 9:10.
10. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by applesdonothelp)
Call them up because a C if you want to continue any science at A-level is bit risky and most 6th form do not allow it at all... My sister got an A and a B and she was not allowed to take physics or chemistry just biology because it is "supposedly" the easiest. But I'm sure if you call them up and ask them, they will tell you what they think. It really depends on the school.
Thanks i'll try I'm worried though
11. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by lil-mazie)
Thanks i'll try I'm worried though
I'm sure you will be fine You never know, you might even have gotten an A* for your retake and if the 6th form just asks for BB I'm sure your A in core will suffice Good Luck with that
12. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by myyrealname)
Physics was a pile of bull****
Yup. The last question was meant to be easy, but the wormy-looking graph stumped me until i got into gear!
13. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
Might start clearing out all my notes and past papers from subjects I don't have to do ever again. Like English and RE. ;D
14. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by mandi21)
Is anyone here doing ICT on Friday?
Living in a digital world? If so, then yeah I am
15. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by mandi21)
Is anyone here doing ICT on Friday?
I am but my teacher has taught us basically nothing for it :/
16. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
So happy today is over. My hand hurts..
17. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
P2 was a lot better than i expected, how did everyone find it?
18. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by shyamshah)
P2 was a lot better than i expected, how did everyone find it?
surprisingly good

my hardest was chem..
19. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
Oh God, I have no English lessons for 3 months now.
20. Re: Current Year 11 thread mark III (woo!) / Year 12 2012/13
(Original post by zedaa)
surprisingly good

my hardest was chem..
Yeah definitely, just happy they are over with though