You are Here: Home >< Physics

# Unit 4 Physics Edexcel A2 and Edexcel IAL

Announcements Posted on
Four hours left to win £100 of Amazon vouchers!! Don't miss out! Take our short survey to enter 24-10-2016
1. All discussion and revision here please.
Best site for resources is probably
www,physicsandmathstutor.com

Posted from TSR Mobile
2. Thanks for making this thread OP! I've added it to the Exam Directory Thread which you can find here. Use that thread to find discussions on your other exam papers, and do let me know if you spot any that aren't on the list. Good luck with this exam!
Attached Images

4. (Original post by Agarshanan)
Coil X has a field which is also acting on Coil Y with the same magnirude. So it would be 0.002x50x4.

Posted from TSR Mobile
5. I have a problem, some explanation is needed for me.

Q4.

Posted from TSR Mobile
6. (Original post by physicsmaths)
I have a problem, some explanation is needed for me.

Q4.

Posted from TSR Mobile
Perhaps use the exponential definitions?

So V = V_0 e^(-t/RC)
7. (Original post by Zacken)
Perhaps use the exponential definitions?

So V = V_0 e^(-t/RC)
Then ...?
I can't show a clear method. Would I say the time is less to charge from 6V to 12V hence larger then the bottom?

Posted from TSR Mobile
8. (Original post by physicsmaths)
Then ...?
I can't show a clear method. Would I say the time is less to charge from 6V to 12V hence larger then the bottom?

Posted from TSR Mobile
Yeh, that's what I'd do, the e^(-) term makes the time from 6 to 12 go slower than 0 to 6
9. (Original post by Zacken)
Yeh, that's what I'd do, the e^(-) term makes the time from 6 to 12 go slower than 0 to 6
Yehh yeh.
In the real exam I used these definitions in a show that where everyone else used proportionality including the MS my alternative was not in the MS but it got 2/3 marks lost a mark cause i wrote the wrong conclusion (wtf is wrong with me). Anyway interesting question when you get to it in the UK 2015 U4 paper!
Cheers btw, needed some insight.
Aint it like 5am in ur endz

Posted from TSR Mobile
10. (Original post by physicsmaths)
All discussion and revision here please.
Best site for resources is probably
www,physicsandmathstutor.com

Posted from TSR Mobile
what do you recommend if I've exhausted every single unit 4 + unit 5 edexcel regular past papers + IAL past papers that are available?

Should I do the more recent papers over again or?
11. (Original post by physicsmaths)
I have a problem, some explanation is needed for me.

Q4.

Posted from TSR Mobile
So what IS the answer for that? :0 (subscribing to the thread)
12. (Original post by AvWOW)
So what IS the answer for that? :0 (subscribing to the thread)
It is B i think

Posted from TSR Mobile
13. (Original post by physicsmaths)
Coil X has a field which is also acting on Coil Y with the same magnirude. So it would be 0.002x50x4.

Posted from TSR Mobile
Thank you so much
14. Hey guys!
Having a little issue here, but I don't know how you'll be able to help me
So there are a lot of questions on projectile motion equations, especially for particles in electric fields and stuff... and i have kind of lost touch of the use of these equations.
Can someone give me a summary of the stuff? Like those calculating max height, then time taken and range etc.
Also where should you use the equation : s= (u+v)t/2?
Thanks for any assistance in any way
15. I'm out of papers to do HELP
16. (Original post by O\$car)
I'm out of papers to do HELP
well... study the papers then.
Also check the examiner reports. really helpful
17. (Original post by O\$car)
I'm out of papers to do HELP
welcome to my world!
18. (Original post by AvWOW)
well... study the papers then.
Also check the examiner reports. really helpful
haha i do that when i mark my papers, i might consider doing all of em for a second time. Though I could use the time to study my M1 or S1 xd
19. any phy unit 6 thread? or notes
20. Hi, I have two questions. For the first picture how do you know which way the current is flowing? And for the second picture why is the answer B? Thanks in advance.

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
your full birthday is required
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 21, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### Who is getting a uni offer this half term?

Find out which unis are hot off the mark here

Poll
Useful resources

## Make your revision easier

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.