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

Raizel
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#1141
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#1141
(Original post by Jmw123)
Where was the experiment for shm someone posted? Saw it earlier but can't find it anymore
Here bro
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Jim997
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#1142
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(Original post by [email protected])
People have been saying this years exams were quite different from previous your opinions on that?
They weren't any different man haha same as always!
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[email protected]
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#1143
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(Original post by Jim997)
They weren't any different man haha same as always!
Yeah alright thanks
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Elcor
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#1144
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TINYCHAT:
https://tinychat.com/0s7s7d

Just sign in as a guest and put your TSR username for reference
I think it can take more than 10 people so this is better

(Original post by verello12)
10 person cap for non premium users. Better to use tinychat
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Jim997
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Geostationary satellites uses - mapping, radio communications, telecommunications ?

Non- geostationary - weather , spy , surveying

What others are there? And are these ones correct, the whole dialogue a few pages back has made me question myself and didn't seem to have a definitive answer..
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ETRC
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(Original post by gothmog827)
anyone got any last tips for the exam!? Thankssss
read questions properly and do not panic under any circumstances
i was able to get through chemistry today by not panicking and thinking about what i know and how to apply it

if you stress in an exam you will forget the small important details
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actanide
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(Original post by Jim997)
Geostationary satellites uses - mapping, radio communications, telecommunications ?

Non- geostationary - weather , spy , surveying

What others are there? And are these ones correct, the whole dialogue a few pages back has made me question myself and didn't seem to have a definitive answer..
thats basically it, I doubt theyll ask you to list five different applications of non or geostationary orbits, just remember two of each and youll be fine
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Raizel
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Remember --> (Km) AND (mm)
always check the your answer and see if it makes sense.
If the car is travelling at 1x10^9ms-1 then you know your wrong.
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HMusa
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#1149
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it doesnt matter if you cant remember but do you remember the page where its mentioned or thereabouts?

also what are each of the circuits suppose to look like? as in how is an electrical heater suppose to be drawn lol

thanks
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Jim997
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(Original post by AlexParmenter)
I did g481 last year and resat this year and I thought it was slightly different like there's normally quite a consistent format to the papers but this one didn't quite fit in with previous years. When I walked out I thought it was a really unfair paper but after looking at the mark scheme it didn't seem so bad. Often people think an exam was harder than it actually was, and even if you do understand all the topics, if you don't have the skill to think outside the box and apply things which you've learned to new situations, questions can easily catch you out
Isn't that precisely what phyiscs is though? Haha
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OwenEllicott1996
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(Original post by verello12)
7374.48729 your calc should have an option to save values so you dont have to type out the whole thing again
Yeah that's what I've been doing as in maths you should always do this, but in the mark scheme it always uses the rounded answer and normally doesn't list this option as acceptable. I will do this tomorrow if in doubt but I was curious.
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HMusa
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(Original post by Ki Yung Na)
Already mentioned earlier somewhere, it is: SHM, specific heat capacity and Brownian motion.

SHM - know what it is and how to interpret what's going on, including energy exchanges.
SHC - know how to measure it (by heating solid/liquid) in a circuit and then calculate it.
Brownian - well it's just proof of random motion; how? Well putting jar of gas under a microscope with light shining on it so one can see the motion of gas molecules which is random proves it is hitting air particles.



It is on one of the earlier pages.
it doesnt matter if you cant remember but do you remember the page where the experiments are mentioned or thereabouts?

also what are each of the circuits suppose to look like? as in how is an electrical heater suppose to be drawn lol

thanks
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Elcor
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#1153
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Join our tinychat and we can help one another's last minute revision:
https://tinychat.com/0s7s7d
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xy0mz
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***HELP*** In the x=Acos(2*Pi*f*t) do I set my calculator to radians or keep it set on degrees?


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HMusa
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(Original post by xy0mz)
***HELP*** In the x=Acos(2*Pi*f*t) do I set my calculator to radians or keep it set on degrees?


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always radians
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xy0mz
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(Original post by HMusa)
always radians
Thank you!


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TommyCooper97
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(Original post by Ellios)
I'm pretty sure you're actually supposed to draw them all to the centre of the planet where they meet at a point.
I'm 100% sure you're not.
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precious maro
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Does anyone have the June 2014 markscheme?


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The Room Student
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I'm probably panicking and overcomplicating but...

What exactly does the specification mean when it says:

"Select and use x = Acos(2πft) or x = Asin(2πft) as solutions to the equation a = –(2πf)^2x"

Do they mean 'work out (or read-off) x from a graph' and then 'bung x into the latter equation to calculate a' or?

Sorry this is a bit late. Thanks in advance to anyone that can help me out here.
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Futuremedic2096
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(Original post by HMusa)
always radians
Degrees
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