AQA AS Physics A Unit 1 January 2012 Discussion

There are two forms of excitation. Excitation through collision, and excitation through the absorption of photons. :smile:

Oh, i think i just did a spelling mistake in my post, what i meant is:

Excitation is due to either a electron from outside the atom colliding with an atomic electron OR a photon colliding with the electron.

I did go on to explain them separately.

Reply 381

Dslash

Original post by husny123

So, how is the revision going? Everyone ready for tomorrow?

Tomorrow? Isn't Physics today?

Reply 382

mento_addict

Original post by Dslash

Tomorrow? Isn't Physics today?

Its deffinatly today!! Chem and Math are tomorrow!!

Reply 383

husny123

Original post by Dslash

Tomorrow? Isn't Physics today?

No, it's actually tomorrow, check the AQA site, there has been "unforeseeable circumstances" what ever that's supposed to mean. I seriously hate AQA, your school should have informed you by now :s-smilie:

?

Reply 384

uxa595

21

http://store.aqa.org.uk/qual/gce/pdf/AQA-PHYA1-W-MS-JUN09.PDF
5ai

Could you not use a cell, voltmeter in parallel, ammeter in series, variable resistor, protective resistor and a diode instead of using a potential divider?

It would just be easier to draw.

Reply 385

uxa595

21

Original post by husny123

No, it's actually tomorrow, check the AQA site, there has been "unforeseeable circumstances" what ever that's supposed to mean. I seriously hate AQA, your school should have informed you by now :s-smilie:

?

U mad?
It says 12 January 2012 pm and last time i checked the date, it's the 12th.

Reply 386

CONFUSED19

Definately today guys :/

Reply 387

husny123

Original post by uxa595

http://store.aqa.org.uk/qual/gce/pdf/AQA-PHYA1-W-MS-JUN09.PDF
5ai

Could you not use a cell, voltmeter in parallel, ammeter in series, variable resistor, protective resistor and a diode instead of using a potential divider?

It would just be easier to draw.

suitable variable input (variable power supply or variable resistor), so yes you can.

Reply 388

Kavzaz

Original post by uxa595

http://store.aqa.org.uk/qual/gce/pdf/AQA-PHYA1-W-MS-JUN09.PDF
5ai

Could you not use a cell, voltmeter in parallel, ammeter in series, variable resistor, protective resistor and a diode instead of using a potential divider?

It would just be easier to draw.

I would have thought so? Personally, I'd firstly say use the variable resistor. Then later say to improve precision, I'd use a potential divider as the current can be reduced to 0? But that's just me.

Reply 389

HeatherJarvo

Original post by husny123

No, it's actually tomorrow, check the AQA site, there has been "unforeseeable circumstances" what ever that's supposed to mean. I seriously hate AQA, your school should have informed you by now :s-smilie:

?

link?? the AQA website im looking at says 12th.

not funny. :angry:

Reply 390

Sam-8

that was horrible :frown:

Reply 391

uxa595

21

2nd to last elec q Nooooooooo

Reply 392

lochbeau

1

Couldn't agree more Sam. It was either really hard or I just started panicking. Last two questions were dreadful! Don't think I've got my A :frown:

Reply 393

EmmaJane_

8

That was insane. I feel like impaling myself onto a pole after that exam.
I came in late because of reasons and that made me panic and my gut feeling says I've got a U. :'( If anyone can post an unofficial mark scheme I'll love you forever.

Reply 394

uxa595

21

What did u lot get for the last 2 q's

Reply 395

BlissJunkie

9

LOL WHAT JUST HAPPENED?!

I thought it started off really well, but then the electricity questions started coming in and I just died.

Reply 396

Sam-8

i thought the last question was horrible especially... and then i realised there was one on the back with like 30 seconds to go!!!! :frown:

not good at all i am feeling! although the table at the start wasnt much for a 7 marker!???? and also the 6 amrk question was a bitch! how do you get the temp of the wire to 100 degrees :s-smilie:

??????

Reply 397

EmmaJane_

8

Original post by BlissJunkie

LOL WHAT JUST HAPPENED?!

I thought it started off really well, but then the electricity questions started coming in and I just died.

Hahah my thoughts exactly!
There was a page of 1 mark electricity questions.. I've obviously missed something but I thought they were all REALLY hard and there wasn't enough information to answer them.. but like I say I've obviously missed something.

Reply 398

Sam-8

Original post by EmmaJane_

Hahah my thoughts exactly!
There was a page of 1 mark electricity questions.. I've obviously missed something but I thought they were all REALLY hard and there wasn't enough information to answer them.. but like I say I've obviously missed something.

same here i wondered why they were 1 markers ans i was struggling like hell with them ! :frown:

and there was so much writing as well not much mathsy stuff i didnt think. definately the hardest on out of all the past papers

Reply 399

lochbeau

1

I think I've missed something on that question too, and on the last question I missed something too probably. I got the voltage was 7V and 2V lost inside battery, and I used this for the internal resistance?

It went so well until 6 and 7! Don't think I even lost a mark prior to the electricity questions, give or take the question on critical temperature but now I'm debating whether I've even got a B.. goddamn!

(edited 12 years ago)

AQA AS Physics A Unit 1 January 2012 Discussion

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