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iGCSE EDEXCEL PHYSICS DISCUSSION 2012

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    what experiments do we have to learn?
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    Please help me!
    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
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    (Original post by librastar28)
    ARE YOU SURE?????????? Well i believe you would thanx you made my day
    Yes certain GOOD LUCK TOMORROW EVERYONE
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    Can someone please post a complete list of all the equations we will need for tomorrows test
    Thanks
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    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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    (Original post by AsUsualImStuck)
    Please help me!
    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
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    (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
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    Does anybody have a link to the january paper??
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    Do we have to know the right hand generator rule?
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    (Original post by eebootwo)
    Do we have to know the right hand generator rule?
    Yes i think


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    Good luck everyone !


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    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.
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    (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?
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    Im guessing 216, if 60% is BB? Depends how grade boundaries are set..

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    So 72 each paper?

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    i have a persistent problem in radioactivity.....can someone please help me with tips to revise all the main things in radioactivity in ten minutes.....
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    check out benaryders youtube channel - his radioactivity clip is over in 21.05 - covers everything - might be worth the extra 10 mins ?
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    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
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    Can someone explain how current is induced in a transformer across the coils? Thanks.
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    haha I wish you the best of luck, you'll be great, no worries

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