OCR Physics A G484 - The Newtonian World - 11th June 2015

I miss fp1! You doing fp2 as well this year?

yep!

i think its a bit of a bitch so far , hate maclaurin n further complex numbers, quite like polar co-ords so far, not startin dif. equations yet in maths or further

How long would it take to self tutor this?

Hi guyssssssss! I am taking this toooooo :P

By the way guys, so vmax = 2πf gives you the t/4?
Anyone can explain me to this, my note is not very clear...

V max occurs at 0 displacement from equilibrium

So if you start a cycle from max displacement

T/4 will be initial 0 displacement which is v max

Although I've never thought of it like that

Do you want it? Topic by topic exam questions for all the sciences. Mine are ocr a though.

Would an A* in Physics be conditional for you?

Anyone have past paper exam for 2014 summer?

No

And for good reason. If your school use it as a mock, you want it to be accurate

Hi guys!

x!

I hope I am not too late! :P

500 individuals boxes! NO, too effort!
2 marks usually mean worth 2 minutes or so...thus the method must be quick/easy

Instead of counting individual box
Do this:
Therefore each boxes = 500 x 0.2x10^-3 = 0.1N.s

so here there is 16 complete boxes
what about the uncompleted boxes? well using your own judgement, how much complete boxes can be made from those pieces?

For me I say maybe 4-6 boxes but Im going to go with 4...
4+16 = 20 boxes

20 ( 500 x 0.2 x10^-3) = 2Ns



MS: 2.2 Ns {allow 2.0 to 2.4}

Hi guys!

Another q but this time from the june 13 paper. Basically the last question is asking you to find the pressure after an additional 1.5m^3 air is added to the cylinder on top of 0.05m^3 of air that's already in the cylinder.

My question is this when I worked out the pressure I used the total volume i.e. 1.55m^3 but the mark scheme says the volume is 0.05m^3 that you have to use. Could someone please explain this to me ... ?

Thanks!