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# iGCSE EDEXCEL PHYSICS DISCUSSION 2012

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1. what experiments do we have to learn?
I would like to know whether anyone has been told anything that their teachers have predicted will be on the exam tomorrow?

I do dual award, and would like to know a rough guide as to the grade boundaries - out of 360? Is it 180 / 360 for BB?? Anyone know?

Thanks
3. (Original post by librastar28)
ARE YOU SURE?????????? Well i believe you would thanx you made my day
Yes certain GOOD LUCK TOMORROW EVERYONE
4. Can someone please post a complete list of all the equations we will need for tomorrows test
Thanks
5. Acceleration = change in velocity/time
Force = mass*acceleration

Weight = mass*gravitational field strength (10)

Power = current*voltage
Energy = power *time
Voltage = current*resistance
Charge = current*time

Speed = frequency*wavelength
Frequency = 1/time period

Refractive index = sin(angle of incidence) / sin(angle of refraction)
Sin(critical angle) = 1/refractive index

Efficiency = useful energy out/total energy in

Work = force*distance

Gravitational potential energy = mass*gravitational field*height

Kinetic energy = 0.5*mass*speed^2 (speed squared)

Power = work/time
Density = mass/volume
Pressure = force/area

Pressure difference = height *density*gravitational field

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6. (Original post by AsUsualImStuck)
I would like to know whether anyone has been told anything that their teachers have predicted will be on the exam tomorrow?

I do dual award, and would like to know a rough guide as to the grade boundaries - out of 360? Is it 180 / 360 for BB?? Anyone know?

Thanks
It's out of 120 for half course LOL
7. (Original post by librastar28)
i found a really great website for revision its actually powerpoint slides on all the topics . I know its very late but still if any1 wants it let me know
yes post it :d
8. Does anybody have a link to the january paper??
9. Do we have to know the right hand generator rule?
10. (Original post by eebootwo)
Do we have to know the right hand generator rule?
Yes i think

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11. Good luck everyone !

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12. Does anyone know an example for like setting up an experiment to measure the speed of sound?

Like seeing a gun shot from 200 meters or something and then measuring the time sound took to travel to you.
13. (Original post by Lunch_Box)
It's out of 120 for half course LOL
Yes, obviously I know that ! I do dual award (but sit the three papers, so 3 x 120 marks per paper is 360!!)

So my total that I have to achieve is ???/360 to get BB ...
So I am asking, what do I have to get out of 360 to get BB?
14. Im guessing 216, if 60% is BB? Depends how grade boundaries are set..

Posted from my phone
15. So 72 each paper?

Posted from my phone
17. check out benaryders youtube channel - his radioactivity clip is over in 21.05 - covers everything - might be worth the extra 10 mins ?
18. Well I'm off to bed. Done as much revision as I can do and my hayfever is making me feel like **** now so I can't concentrate. Will do a bit in the morning.

Good luck to everyone tomorrow
19. Can someone explain how current is induced in a transformer across the coils? Thanks.
20. haha I wish you the best of luck, you'll be great, no worries

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Updated: June 22, 2012
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