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# Edexcel Unit 4: Physics on the Move 6PH04 (11th June 2015) Watch

• View Poll Results: What do you think the grade boundary for an A will be?
GCE-65+
3
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28
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GCE-55-59
31
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GCE-50-54
8
9.52%
GCE-45-49
1
1.19%
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1. Could someone please help with his question! I can't figure out how to use the equation V=V0e^-t/rc here, and the mark scheme is no help. Any help would be appreciated It's question q16 c) ii) that I can't figure out, thanks
2. Got 31/40 in the coursework. Need 112/120 average for an A* now.

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3. (Original post by physicsmaths)
Got 31/40 in the coursework. Need 112/120 average for an A* now.

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Is this cos it dragged your average down to below an A? Because the A* only depends on the two exams!
4. (Original post by cerlohee)
Is this cos it dragged your average down to below an A? Because the A* only depends on the two exams!
What? Are you sure. I thought it depends on the whole of A2 the two exams and the coursework.

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5. (Original post by physicsmaths)
What? Are you sure. I thought it depends on the whole of A2 the two exams and the coursework.

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Oh **** I've been misinformed sorry
Arghh I put so little effort into my coursework cos I thought it didn't matter D:
6. (Original post by cerlohee)
Oh **** I've been misinformed sorry
Arghh I put so little effort into my coursework cos I thought it didn't matter D:
What did you get. All my firends got A*s except me.

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7. (Original post by physicsmaths)
What did you get. All my firends got A*s except me.

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I don't know our teacher hasn't told us... I did a practice one that got 29 but it was only half done so this one is probably somewhere above that...
What grade did you get? No one at my school gets A*s for the coursework wowow
8. (Original post by cerlohee)
I don't know our teacher hasn't told us... I did a practice one that got 29 but it was only half done so this one is probably somewhere above that...
What grade did you get? No one at my school gets A*s for the coursework wowow
I got a B. 31/40. My teacher is the harshest marker ever and an official for edexcel. We didnt even get told what the practical was before he day. Me and my mates all made notes and had a group on whastapp but i just screwed up all the last analysis marks. Which cost me the A*. My teacher writes edexcel physics questions!

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9. (Original post by physicsmaths)
I got a B. 31/40. My teacher is the harshest marker ever and an official for edexcel. We didnt even get told what the practical was before he day. Me and my mates all made notes and had a group on whastapp but i just screwed up all the last analysis marks. Which cost me the A*. My teacher writes edexcel physics questions!

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Got ours back today mine was 34... Someone in my class got full marks though 😩
Yeah my teacher isn't a great marker everyone's grades changed after moderation.
Jesus that must be so useful! Are they a good teacher then?

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10. (Original post by cerlohee)
Got ours back today mine was 34... Someone in my class got full marks though 😩
Yeah my teacher isn't a great marker everyone's grades changed after moderation.
Jesus that must be so useful! Are they a good teacher then?

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Yh amazing teacher. He got something wrong for the first time yesterday and I found his mistake haha lol.
We only have him once a week though. The other teachers are horrendous. He is our saviour. He als did the equivalent of Physics STEP back jn the 80s and got the top Grade.

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11. (Original post by physicsmaths)
Yh amazing teacher. He got something wrong for the first time yesterday and I found his mistake haha lol.
We only have him once a week though. The other teachers are horrendous. He is our saviour. He als did the equivalent of Physics STEP back jn the 80s and got the top Grade.

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Ahh that's amazing! Well my unit 4 teacher is absolutely useless so I'll probably have a lot of questions here as we get near exam period haha

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12. For this question, why does the lamp not flash when the switch is closed? :s

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13. (Original post by cerlohee)
For this question, why does the lamp not flash when the switch is closed? :s

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Spoke to my teacher and it was just a misunderstanding of the phrase "when the switch is closed"
I thought it meant the act of physically closing the switch, which would generate an EMF. However, it only meant that the switch is not open.
14. i did this paper last year and got a u in it...bringing my entire grade down to a C. im retaking it now but i really struggle with all of the concepts and i find this module to be much harder than the other modules. can anyone please give me some advice or link me some good revision websites?
15. (Original post by gideon123)
i did this paper last year and got a u in it...bringing my entire grade down to a C. im retaking it now but i really struggle with all of the concepts and i find this module to be much harder than the other modules. can anyone please give me some advice or link me some good revision websites?
Physicsmathstutor is a brilliant website.

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16. (Original post by cerlohee)
For this question, why does the lamp not flash when the switch is closed? :s

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Deceptive question but pretty nice if you understand what is going on. With all these field questions it is the same thing over and over again. Just different versions lol.

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17. (Original post by physicsmaths)
Deceptive question but pretty nice if you understand what is going on. With all these field questions it is the same thing over and over again. Just different versions lol.

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Luckily the question was about the open, not closed switch. Haha yeah def agree I mean I still don't really know wtf flux linkage is but whatever I can answer the questions haha
18. (Original post by cerlohee)
Luckily the question was about the open, not closed switch. Haha yeah def agree I mean I still don't really know wtf flux linkage is but whatever I can answer the questions haha
It is the 'amount' of flux is the way I like to think about. Or Net flux. Although i wouldnt use that. A definition of product of turns and flux gets full marks in this prticular case.

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19. (Original post by physicsmaths)
It is the 'amount' of flux is the way I like to think about. Or Net flux. Although i wouldnt use that. A definition of product of turns and flux gets full marks in this prticular case.

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I get that but not what flux is and why it's relevant to EMF! Guess I have to wait until uni to find that stuff out!

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20. (Original post by Regina15)
Could someone please help with his question! I can't figure out how to use the equation V=V0e^-t/rc here, and the mark scheme is no help. Any help would be appreciated It's question q16 c) ii) that I can't figure out, thanks
I don't know how to answer this but have you looked at the examiner's report?

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Updated: June 16, 2015
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