Unit 4 Physics Edexcel A2 and Edexcel IAL

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#1
All discussion and revision here please.
Best site for resources is probably
www,physicsandmathstutor.com

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4 years ago
#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!
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4 years ago
#3
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#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.

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#5
I have a problem, some explanation is needed for me.

Q4.

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4 years ago
#6
(Original post by physicsmaths)
I have a problem, some explanation is needed for me.

Q4.

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Perhaps use the exponential definitions?

So V = V_0 e^(-t/RC)
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#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?

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4 years ago
#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?

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Yeh, that's what I'd do, the e^(-) term makes the time from 6 to 12 go slower than 0 to 6
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#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

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4 years ago
#10
(Original post by physicsmaths)
All discussion and revision here please.
Best site for resources is probably
www,physicsandmathstutor.com

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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?
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4 years ago
#11
(Original post by physicsmaths)
I have a problem, some explanation is needed for me.

Q4.

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

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4 years ago
#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.

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Thank you so much
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4 years ago
#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
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4 years ago
#15
I'm out of papers to do HELP
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4 years ago
#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
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4 years ago
#17
(Original post by O\$car)
I'm out of papers to do HELP
welcome to my world!
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4 years ago
#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
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4 years ago
#19
any phy unit 6 thread? or notes
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4 years ago
#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.
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