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AQA Physics PHYA4 - 20th June 2016 [Exam Discussion Thread]

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Original post by Questioner1234
I thought Y to X, they would both be positive so repulsion?


Thats what i thought
For the 2 EM laws, did you just write faradays and lenzs law?
Original post by Questioner1234
I thought Y to X, they would both be positive so repulsion?


Wouldn't it be X to y, from the bigger charge to the smaller ?
will you get a mark for saying the braking system uses a dynamo the make electrival energy whjich would reduce fuel consumpion
Original post by Nathanburns01
Thats what i thought


After the charge was added they were both positive so would the bigger one (X) repel more? Making it X to Y?
Original post by Mango Milkshake
For the 2 EM laws, did you just write faradays and lenzs law?


No... you had to explain. Doubt you'd get more than a mark just stating...
Original post by Mango Milkshake
For the 2 EM laws, did you just write faradays and lenzs law?


Yes
Original post by cowie
Minimum closer to Venus


Posted from TSR Mobile


Yeah I know that was just a rough sketch


How many times are you gonna spam this?
Original post by Nikhilm
How many marks was this question?


Posted from TSR Mobile

I think it was 2 marks.
Original post by Mango Milkshake
For the 2 EM laws, did you just write faradays and lenzs law?


Yeah
Grade boundaries same as last year but +4 for all grades? 58 for A* seems fair? Definitely wasn't as easy as june 2014 purely because this multiple choice was a lot harder imo.
Original post by BioStudentx
No... you had to explain. Doubt you'd get more than a mark just stating...


Original post by BioStudentx
No... you had to explain. Doubt you'd get more than a mark just stating...


i mean i explined faradays and lenzs laws. (emf is rate of change of flux linkage, current opposes change)
Reply 1254
Original post by Mango Milkshake
For the 2 EM laws, did you just write faradays and lenzs law?

Yep
Original post by Mango Milkshake
How many times are you gonna spam this?


I was going to post it once per page, since lots of people are posting right now, and not everyone will look far back. I'll stop for a bit :wink:
Original post by Cadherin
Right, ok, I must have misread it. If I showed all my working, would I get 1/3?


Yes probably
Original post by Mango Milkshake
I put x to y

you?


Same!
would saying a limitation of the time period of oscillation equation is that it assumes that there is no energy lost at all be correct
Original post by kingaaran
Same!


Was that left to right or right to left?

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