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

Some answers I got:

Ion mass = 2.18x10 ^-25
Initial acc = 1.27x10^-5
Satellite velocity =0.061
Star mass = 1.97x10^30
Time was something in millisecond
Pressure = 1.5x10^7

Only mark I'm certain I've lost is the amplitude and acceleration of the SHM metal, I didn't see the velocity was in 0.1ms^-1. Should only lose one due to ecf.

Ask me if you want to know what I put for specific questions. Definitely lost like 10 somehow throughout the paper though.

Because it was the pressure for the whole system,

first graph: negative constant gradient through origin
second: still sinusoidal but decrease in amplitude and slight increase in time period (not sure if this second point is necessary)
third: basic resonance graph, with peak at 8Hz

yeah I think if we're all finding it that rubbish then they probably will be quite low this year

Doesn't volume after the added moles stay constant for the last question?

Because it was the pressure for the whole system,

I think i lost about 15 marks but i think this was so much harder than last years so do you think grade boundaris will be low??


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rate of photons emitted is another factor that may have not been what it was.

For the second the period is constant but the amplitude decreases over time

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Swear it was pressure for tank only?? If not f*** I was going to do that then thought it was tank only

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oh yeah i think i got that but for a i put 9.81

Swear it was pressure for tank only?? If not f*** I was going to do that then thought it was tank only

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