2016 Official AQA New Spec AS Level Physics Paper 1 - 24th of May 2016

My whole class, including me, had our confidence crushed after those papers :'(

I am just wondering if you have done the paper in which it said a student suggests that the circuit shown in Figure 6...

It then says discuss the limitations of this circuit when used to collect the data for the characteristic...
the mark scheme says its because you cant obtain the full range of pd... I don't get why?
Is it because that when you set the resistance of the variable resistor to a maximum there will still be a current drawn through the circuit and so there will be a current through the bulb leading to a pd across it?
and you cant get maximum pd across the bulb because there will always be a voltage drop across the variable resistor?
I dont get if there is something to do with the fact that the power supply has some internal resistance though? Because that will mean that you cant get full pd across either of them?

I know the potentiometer way is better but do not fully get it,
really appreciate if you could help :smile:

Reply 41

Quido

9

Original post by Lola1244

I am just wondering if you have done the paper in which it said a student suggests that the circuit shown in Figure 6...

It then says discuss the limitations of this circuit when used to collect the data for the characteristic...
the mark scheme says its because you cant obtain the full range of pd... I don't get why?
Is it because that when you set the resistance of the variable resistor to a maximum there will still be a current drawn through the circuit and so there will be a current through the bulb leading to a pd across it?
and you cant get maximum pd across the bulb because there will always be a voltage drop across the variable resistor?
I dont get if there is something to do with the fact that the power supply has some internal resistance though? Because that will mean that you cant get full pd across either of them?

I know the potentiometer way is better but do not fully get it,
really appreciate if you could help :smile:

I think it was because of the internal resistance, voltage is used there so the bulb cannot get the full p.d of the battery? This is from the top of my head, I think that's what I wrote down and got at least 1 of the marks.

Reply 42

Promethean_M

6

Yea, i was thinking along those lines too. The value of the resistor was very similar to the EMF and so I'd assume that any small changes to the resistor wouldn't create much of an effect as a large pd is dropped across the battery anyway

Reply 43

Lola1244

5

Original post by Quido

I think it was because of the internal resistance, voltage is used there so the bulb cannot get the full p.d of the battery? This is from the top of my head, I think that's what I wrote down and got at least 1 of the marks.

thanks

how r you revising for practicals?

Reply 44

Mo_Ali98

3

what do you guys find the hardest contents in physics to be ?

Reply 45

Quido

9

Original post by Lola1244

thanks

how r you revising for practicals?

Probably just read through my practical book as well as read the methods given in the text book for all 6 practicals. During the holidays though seeing as Paper 1 shouldn't have much of that.

Reply 46

studentabcde

1

Original post by Exavior

I really hope so otherwise I will fail more then that damn edexcel c1 paper on Wednesday!

Dude don't remind me I swear you'll trigger PTSD or something!

Reply 47

studentabcde

1

Could anyone tell me what each paper covers? I know all units are tested on each paper, but what is the difference between the two papers?

I asked my physics teachers but they didn't really know...

Reply 48

Quido

9

Original post by studentabcde

Could anyone tell me what each paper covers? I know all units are tested on each paper, but what is the difference between the two papers?

I asked my physics teachers but they didn't really know...

Paper 1 tests all the content, all 6 chapters in the textbook.

Paper 2 also tests that in section B, which is similar to paper 1 questions and section C, which is 30 multiple choice questions. Section A in this paper has the practical skills stuff, like data analysis and uncertainties.

Reply 49

mollyjoy1998

8

Original post by Lola1244

has anyone tried the specimen papers. I found them hard lol

They are awful aren't they? I cried in both exams! Praying for easier ones on Tuesday

Reply 50

Quido

9

Original post by mollyjoy1998

They are awful aren't they? I cried in both exams! Praying for easier ones on Tuesday

If it all goes badly, we can all cry together here on the forum :tongue:

Reply 51

mollyjoy1998

8

Original post by Quido

If it all goes badly, we can all cry together here on the forum :tongue:

Ready for that😂 . To be honest I'm more worried about paper two because of the questions that are making up for the ISA. Because I'm just SHOCKING at those sort of things when it isn't my own data. Let's hope some nice electricity and mechanics stuff comes up

Reply 52

Quido

9

Original post by mollyjoy1998

Ready for that😂 . To be honest I'm more worried about paper two because of the questions that are making up for the ISA. Because I'm just SHOCKING at those sort of things when it isn't my own data. Let's hope some nice electricity and mechanics stuff comes up

My worst part is the multiple choice, they are worth 1 mark but amount of working required to get the answer would be worth 3 or 4 marks in Paper 1. The new spec is ridiculous D:

Reply 53

mollyjoy1998

8

Original post by Quido

My worst part is the multiple choice, they are worth 1 mark but amount of working required to get the answer would be worth 3 or 4 marks in Paper 1. The new spec is ridiculous D:

True, the working out is enough for an entire 5/6 mark question in some cases💔

Reply 54

Exavior

2

Original post by mollyjoy1998

Ready for that😂 . To be honest I'm more worried about paper two because of the questions that are making up for the ISA. Because I'm just SHOCKING at those sort of things when it isn't my own data. Let's hope some nice electricity and mechanics stuff comes up

"Nice electricity" haha is this possible 😂
I cant do electricity for my life 😔

Reply 55

Nelson Barnaby

2

Uncertainties can come up in either paper, but only Paper 2 will have questions regarding the 6 'required practicals'.

Reply 56

Conquest.

4

Original post by Nelson Barnaby

Uncertainties can come up in either paper, but only Paper 2 will have questions regarding the 6 'required practicals'.

is this confirmed? I was revising the practicals the other day :s-smilie:

Reply 57

Psraim

1

Original post by Lola1244

I am just wondering if you have done the paper in which it said a student suggests that the circuit shown in Figure 6...

It then says discuss the limitations of this circuit when used to collect the data for the characteristic...
the mark scheme says its because you cant obtain the full range of pd... I don't get why?
Is it because that when you set the resistance of the variable resistor to a maximum there will still be a current drawn through the circuit and so there will be a current through the bulb leading to a pd across it?
and you cant get maximum pd across the bulb because there will always be a voltage drop across the variable resistor?
I dont get if there is something to do with the fact that the power supply has some internal resistance though? Because that will mean that you cant get full pd across either of them?

I know the potentiometer way is better but do not fully get it,
really appreciate if you could help :smile:

Is it possible for you to give me a link to that paper, pleaseee.