I have not done the first one yet but the second one is F=ma=mdv/dt= d(mv)/dt(Original post by Undisclosed 15)
Can anyone explain these 2 questions to me?
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So the gradient of the line!
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Edexcel Unit 4: Physics on the Move 6PH04 (11th June 2015) watch
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physicsmaths
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- 06-06-2015 08:44
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physicsmaths
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- 06-06-2015 08:47
(Original post by BP_Tranquility)
Does anyone know of any places to get a load of difficult unit 4 questions?
I found this custom made unit 4 paper on TSR but it doesn't have a mark scheme- would greatly appreciate it if someone made one though!!
http://www.thestudentroom.co.uk/show....php?t=1160855
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physicsmaths
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- 06-06-2015 08:48
Okay so ive done 2 Unit 4 papers
Jan 2010 72/80
June 2010 63/80
Basically I get the capacitor questions mostly wrong when I do them, any advice or resources to get better at them?
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- 06-06-2015 13:20
The magnetic field is into the page. Using the left hand rule, I figured that D was negatively charged.
BUT the book says that C is negative, meaning D is positive. I dont understand.. -
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- 06-06-2015 13:36
I don't understand why this question is A. I got 1.2 Wb when doing the question.
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iceangel8
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- 06-06-2015 14:18
(Original post by J_T_)
I don't understand why this question is A. I got 1.2 Wb when doing the question.
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- 06-06-2015 17:58
(Original post by haappy17)
The magnetic field is into the page. Using the left hand rule, I figured that D was negatively charged.
BUT the book says that C is negative, meaning D is positive. I dont understand.. -
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- 06-06-2015 19:56
(Original post by iceangel8)
Flux linkage is NBA so 50x0.06x0.06x0.4= 0.072 -
physicsmaths
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- 06-06-2015 19:59
(Original post by kor97)
I have the same revision guide and I got D is negative as well so you're not going mad. Must be an error in the book.. Noticed a couple of small errors in it actually, which really isn't helpful.
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cerlohee
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- 06-06-2015 20:35
For anyone who's done the v difficult Jan 2012 paper and was confused about the Ampere's law question, this vid explains it q well
https://youtu.be/BXKihkHjYes?t=3m40s
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physicsmaths
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- 06-06-2015 20:39
(Original post by cerlohee)
For anyone who's done the v difficult Jan 2012 paper and was confused about the Ampere's law question, this vid explains it q wellhttps://youtu.be/BXKihkHjYes?t=3m40s
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cerlohee
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- 06-06-2015 20:41
right thumb is the current, right fingers are the magnetic field
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physicsmaths
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- 06-06-2015 20:43
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cerlohee
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- 06-06-2015 20:44
did you think it was an easy q? -
physicsmaths
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- 06-06-2015 20:46
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cerlohee
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- 06-06-2015 20:49
(Original post by physicsmaths)
Havent done it yet ony done jan jun 2010. Im pretty good at fields though. Capacitors are mindblowing.
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What do you get wrong with the capacitors questions? It's always saying what happens when charging, or what happens when discharging and then doing a RC calculation to work out if the capacitor will be sufficient (which it always is) haha -
physicsmaths
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- 06-06-2015 21:22
(Original post by cerlohee)
Oh okay. Yeah I'm still not that good haha, but getting better (y)
What do you get wrong with the capacitors questions? It's always saying what happens when charging, or what happens when discharging and then doing a RC calculation to work out if the capacitor will be sufficient (which it always is) haha
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BP_Tranquility
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- 06-06-2015 21:28
Does anyone know where I can find the answers to the unit 4 paper in the A2 hodder physics textbook?
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Undisclosed 15
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- 07-06-2015 00:18
(Original post by physicsmaths)
Havent done it yet ony done jan jun 2010. Im pretty good at fields though. Capacitors are mindblowing.
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minroi#01#
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- 07-06-2015 08:43
Can anybody explain the answers for the following MCQ's of the June 2011 phy U4 paper plz:
06)
10)
Oh and the question #14
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Physics (including Foundation year)
Swansea University
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University of Manchester
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University of York
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UCL
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Central Lancashire (UCLan)
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University of York
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University of York
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Keele University
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Durham University
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Lancaster University
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