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    (Original post by omgitslouise)
    Praying that the P3 6 marker is instructions for finding the centre of mass of an object
    It should be , although i hope the eye doesn't come up.
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    Please explain critical angle when angle of incidence and refraction is given... I'm a little confused!!!


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    Do you get a formula sheet and periodic table?


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    (Original post by omgitslouise)
    Praying that the P3 6 marker is instructions for finding the centre of mass of an object
    So do I however, unfortunately it did come up last year


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    (Original post by Chardevs)
    Is it possible to learn the majority of P2 the night before the exam?😅 what main topics should i be looking at?
    - electricity
    - forces
    - life cycle of stars
    - radioactivity
    - motion
    - work , energy , momentum
    - main's supply

    it's possible.
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    (Original post by shannon060399)
    Do you get a formula sheet and periodic table?


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    Formula sheet but not periodic table.. That's only for chemistry.


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    (Original post by turquoisecat)
    Formula sheet but not periodic table.. That's only for chemistry.


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    But then how are you meant to label the element if the alpha and beta part comes up and you have to change the element but taking away and adding


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    (Original post by Chardevs)
    Is it possible to learn the majority of P2 the night before the exam?😅 what main topics should i be looking at?
    Exactly what I'm doing right now! Did that for the chemistry as well, and managed to answer 80% of the questions on the exam, sooooo I guess we'll see if this was an effective way of revising when we get our results back


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    (Original post by omgitslouise)
    Praying that the P3 6 marker is instructions for finding the centre of mass of an object
    It won't be because it was the 5 marker last year
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    can anyone outline nuclear fission and fusion? Much appreciated, last minute revision.
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    Do you get all equations on a formula sheet???
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    (Original post by will.i am583)
    Do you get all equations on a formula sheet???
    Except "frequency(Hz)=1/time period(seconds)"
    There might be others but this is the only one I know that isn't on the sheet

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    How do you convert the minutes into seconds?


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    (Original post by will.i am583)
    Do you get all equations on a formula sheet???
    My teacher told us that Frequency=1/time period distance=speed/time and (p3)pressure= force/cross sectional area isn't on the sheet
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    if i got an A* in p1 a low B in p2 an A in p3 and a high B in coursework (1 off an A, 25% of final grade) what would my overall grade be??
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    (Original post by turquoisecat)
    How do you convert the minutes into seconds?


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    Multiply the minutes by 60

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    (Original post by turquoisecat)
    How do you convert the minutes into seconds?


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    x60 (because there are 60 seconds in a minute)
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    (Original post by Natalie15)
    can anyone outline nuclear fission and fusion? Much appreciated, last minute revision.
    Im sure I will be corrected if I am wrong but this is how I have learnt it.
    nuclear fission:
    a neutron is absorbed into the nucleus of an uranium (usually uranium-235) or plutonium (usually plutonium-239) which makes it unstable and causes it to split. It splits into two smaller atomic nuclei and spits out two or three neutrons. These neutrons could go on to be absorbed into the nucleus of another atom, causing it to split so it causes a chain reaction. (this is why control rods are used in power stations- they absorb some of the neutrons to control the chain reaction)
    Nuclear fission has many disposable issues and is very expensive way of producing energy

    Nuclear fusion:
    This is the joining of two smaller atomic nuclei to form one larger atomic nucleus. It creates a lot more energy than fission and there is plenty of hydrogen available for fuel so people are trying to develop ways to use it. But it can only occur at 10 million degress C and it currently takes a lot more enrgy to get the reactor to this temp than it can produce
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    I'm a bit stuck on electromagnetic induction, could someone explain the main points I need for the exam?
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    (Original post by docilechic)
    My teacher told us that Frequency=1/time period distance=speed/time and (p3)pressure= force/cross sectional area isn't on the sheet
    Here is the P3 equation sheet. All of those are on this sheet, so don't worry.
    http://filestore.aqa.org.uk/subjects...HYS-W-DS-3.PDF

    If you encounter a question saying "Use the formula on the sheet." in the exam, then it will be on here.
 
 
 

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