Edexcel IAL Physics Unit 2 WPH02 May June 2016 Discussion

Reply 40

Hamadtype-

2

Original post by Bloom <3

Overall how many marks do u expect?

if you mean for the question I think 3 marks, if for the whole paper, ummmm i didnt do well so, ill go for 40-46

Reply 41

MYBOIPOOM

Original post by Zainat0987

4.6

4.59

Reply 42

Bloom <3

7

Original post by Mesuteyezil

Hey there, last question was quite easy..you were supposed to say that the atoms of the element ( I think it was sodium ) get excited and move to higher energy levels, later, when they do return, they emit photons- only certain energy levels are possible... energy of the photon must equal the difference in the energy levels and as a result, there are only limited no. of energy differences corresponding to the set frequency and wavelength :smile:

Phewwww
I think i am good in this qs then 😃

Reply 43

Zainat0987

2

Original post by Hamadtype-

Dont we use v output = R / R + T x V input to find the thermistor?

Yeah certainly one way of doing it..but i used the general formulae to find the current in the circuit and then the resistance of the thermistor...btw what was your thermiator resistance?? I got that to be 23 ohm and the corresponding temp to be 35..

Reply 44

Bloom <3

7

Original post by Hamadtype-

if you mean for the question I think 3 marks, if for the whole paper, ummmm i didnt do well so, ill go for 40-46

For entire paper
That is pretty good considering the paper given

Reply 45

MYBOIPOOM

Original post by hamza02016

****. I got percsntage difference as 10. Something

I got 5%, it depends on where you choose the P.D., I chose 2.25V

Reply 46

Mesuteyezil

3

Original post by Bloom <3

Phewwww
I think i am good in this qs then 😃

Haha don't stress, you'll do well.. what do you think about the grade boundary?

Reply 47

eftio.gea

6

Guys this was the hardest paper I've done.... literally gone from getting at least 80% on papers to possibly failing this one 😭 I missed out so many questions 😭😭

Reply 48

Sunethra

6

Original post by Mesuteyezil

Hey there, last question was quite easy..you were supposed to say that the atoms of the element ( I think it was sodium ) get excited and move to higher energy levels, later, when they do return, they emit photons- only certain energy levels are possible... energy of the photon must equal the difference in the energy levels and as a result, there are only limited no. of energy differences corresponding to the set frequency and wavelength :smile:

Last q was rushed but I wrote the same thing as u

Posted from TSR Mobile

Reply 49

SH B)

why did i find this paper OK? the questions were relatively easier than few past papers..anyone else? :frown:

Reply 50

afridi010

1

Original post by Zainat0987

4.6

same

Reply 51

Mesuteyezil

3

Original post by Sunethra

Last q was rushed but I wrote the same thing as u

Posted from TSR Mobile

6mks in the bag already! :smile:

Grade boundary predictions?

Reply 52

SH B)

waiting for model answer...

Reply 53

SH B)

'A' should be at 46 BAS

Reply 54

Blazyy

3

Original post by SH B)

'A' should be at 46 BAS

Wow that's low

What's BAS?

Reply 55

Zainat0987

2

Original post by Mesuteyezil

Hey there, last question was quite easy..you were supposed to say that the atoms of the element ( I think it was sodium ) get excited and move to higher energy levels, later, when they do return, they emit photons- only certain energy levels are possible... energy of the photon must equal the difference in the energy levels and as a result, there are only limited no. of energy differences corresponding to the set frequency and wavelength :smile:

Yeah wrote exact same things..but the ques was may b of 6 marks..
Writing these may be we will get at least 4 mark but yeah i just cudnt workout anything else for this ques

(edited 7 years ago)

Reply 56

AlonsoAMG

1

Original post by Hamadtype-

E=HF
E=IVT
IVT=HF
IV x1/F = HF
H= [ IV (1/F) ] / F

That's completely wrong mate

Reply 57

Dr.strange12

2

Well the p.d of the resistor was 1,6 V u don't include the e.m.f because some volatge was used by the internal resistance regardless. The internal resistor is kind of like a second resistor in the circuit. So ya 4. something was the right answer. Also plancks constant was calculated by using W=QV of an electron and then equating it to E=hf. Then ya perecantage uncertanity and such and it was off by like 10% for me