Edexcel Physics Unit 2 "Physics at work" June 2013

It wasn't Big V, it was small v that the voltmeter was measuring. Because the voltmeter was across the battery


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http://www.s-cool.co.uk/a-level/physics/resistance/revise-it/internal-resistance-emf-and-potential-difference

How come they continued the graph below horizontal axis and to the left of the vertical axis?

doesn't really make a difference the comparison should still be the same, iv just represent the IR as V that's the lost volts I think...

I can remember the exact value that i got for the critical angle, but it was around 47 or 48... did anyone get the same?

If you look at the pictures I had in my original post you'll see why I think it's C I saw a very similar question in the textbook

yes sounds familiar I got about that

I can remember the exact value that i got for the critical angle, but it was around 47 or 48... did anyone get the same?

i got 48.8 .

What do people think the grade boundaries will be like and the overall perception of the paper in general as a unit 2 paper? (Not in comparison to unit 1, though I am relieved because I did find it better and more accessible/relevant )

Guys my father is a professor of Engineering and Modern Physics in the University of C******e and he told me that the line has a negative gradient. I hope he is not wrong because the guys from C******e will fire him!!!

I think it would be higher than unit 1 ( like all previous years) should be around 55ish for an A I guess


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Could you ask him about the very last question?

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Thanks. I am petrified for my physics AS, I have absolutely no idea how I've done as I sat everything for the first time in this exam season and I don't even know how my coursework went.

Same I'm really hoping ill get an A overall but my coursework looks crap


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what did you write for how ultrasound travels in the metal

what did you write for how ultrasound travels in the metal