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    (Original post by PhysicsIP2016)
    yes
    Thank you
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    when you explain what an electric field is, do you say an area where a charged particle experiences a force or an area where a proton experiences a force?
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    (Original post by Mowerharvey)
    when you explain what an electric field is, do you say an area where a charged particle experiences a force or an area where a proton experiences a force?
    Charged particle
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    Started ppers yesterday. Anyone doing papers a few times?
    That is my aim lol!


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    (Original post by physicsmaths)
    Started ppers yesterday. Anyone doing papers a few times?
    That is my aim lol!


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    Past papers is pretty much all I'm doing for physics at the moment, onto my second round currently
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    (Original post by physicsmaths)
    Started ppers yesterday. Anyone doing papers a few times?
    That is my aim lol!


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    First round.
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    (Original post by physicsmaths)
    Started ppers yesterday. Anyone doing papers a few times?
    That is my aim lol!


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    Yeah it really helps! Also AQA multiple choice questions are really good because some of them are quite weird and obscure and make you think differently about certain topics
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    (Original post by physicsmaths)
    Started ppers yesterday. Anyone doing papers a few times?
    That is my aim lol!


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    Haha, I just did a mock after ages. Time to mark
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    (Original post by PhysicsIP2016)
    Yeah it really helps! Also AQA multiple choice questions are really good because some of them are quite weird and obscure and make you think differently about certain topics
    Do you have a link?
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    (Original post by Mowerharvey)
    Do you have a link?
    http://www.physicsandmathstutor.com/...cs/aqa-unit-4/
    (These all contain fields and Further Mechanics. All the papers labelled 4A have a long multiple choice section and 4B contain written answers)

    http://www.physicsandmathstutor.com/...cs/aqa-unit-1/
    (No multiple choice, but these contain particles questions and some AS electricity if you want to revise that too)

    http://www.physicsandmathstutor.com/...cs/aqa-unit-5/
    (This is our unit 5 stuff - part A is astrophysics, part B we don't cover in Edexcel, part C you may find some questions that are Edexcel and the 1 papers cover Nuclear and Thermal Physics)
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    (Original post by PhysicsIP2016)
    http://www.physicsandmathstutor.com/...cs/aqa-unit-4/
    (These all contain fields and Further Mechanics. All the papers labelled 4A have a long multiple choice section and 4B contain written answers)

    http://www.physicsandmathstutor.com/...cs/aqa-unit-1/
    (No multiple choice, but these contain particles questions and some AS electricity if you want to revise that too)

    http://www.physicsandmathstutor.com/...cs/aqa-unit-5/
    (This is our unit 5 stuff - part A is astrophysics, part B we don't cover in Edexcel, part C you may find some questions that are Edexcel and the 1 papers cover Nuclear and Thermal Physics)
    Thank you very much
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    (Original post by PhysicsIP2016)
    http://www.physicsandmathstutor.com/...cs/aqa-unit-4/
    (These all contain fields and Further Mechanics. All the papers labelled 4A have a long multiple choice section and 4B contain written answers)

    http://www.physicsandmathstutor.com/...cs/aqa-unit-1/
    (No multiple choice, but these contain particles questions and some AS electricity if you want to revise that too)

    http://www.physicsandmathstutor.com/...cs/aqa-unit-5/
    (This is our unit 5 stuff - part A is astrophysics, part B we don't cover in Edexcel, part C you may find some questions that are Edexcel and the 1 papers cover Nuclear and Thermal Physics)
    Thanks a lot!
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    Hi. Would someone help me out in this paper? Was trying it out.
    https://60abffc9b401b1c0936e01291c15...%20Physics.pdf
    I need help in Q21 and Q25
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    (Original post by sabahshahed294)
    Hi. Would someone help me out in this paper? Was trying it out.
    https://60abffc9b401b1c0936e01291c15...%20Physics.pdf
    I need help in Q21 and Q25
    Q21 - Work out the number of electrons in the conductor by finding the volume and then multiplying by 8x10^28. You can then use F=BIL to work out the total force acting on the conductor and divide this number by the number of electrons.

    Q25 - The plane is travelling at 150 metres per second. As the plane is flying, think about it travelling through a rectangle of 150m x 60m every second. You can then use Magnetic flux = BxA. As e.m.f. = change in magnetic flux/change in time, as the change in time is 1 second then the value you get for the magnetic flux is simply the value for the induced e.m.f.
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    (Original post by PhysicsIP2016)
    Q21 - Work out the number of electrons in the conductor by finding the volume and then multiplying by 8x10^28. You can then use F=BIL to work out the total force acting on the conductor and divide this number by the number of electrons.

    Q25 - The plane is travelling at 150 metres per second. As the plane is flying, think about it travelling through a rectangle of 150m x 60m every second. You can then use Magnetic flux = BxA. As e.m.f. = change in magnetic flux/change in time, as the change in time is 1 second then the value you get for the magnetic flux is simply the value for the induced e.m.f.
    Oh okay! Thanks a lot!
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    Hello, would someone help me out in these questions(2,10 and 14b) in the paper I posted below?

    https://ad57adc4f6eb5ea42b541057f162...%20Physics.pdf
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    (Original post by PhysicsIP2016)
    For using FLHR for any conducting object moving in a magnetic field, think of the moving object itself as being a "flow of positive charge", so instead of pointing your thumb in the direction of motion of the plane you point your second finger in that direction instead and use your thumb to work out the direction of force acting on the positive charges and thus which wing will become positively charged.

    After the plane reaches a constant velocity, the change in magnetic flux becomes zero as there is no acceleration, so there is no emf induced in the wings and thus no buildup of charge.
    Why not just use Fleming's RIGHT hand rule?
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    (Original post by sabahshahed294)
    Hello, would someone help me out in these questions(2,10 and 14b) in the paper I posted below?

    https://ad57adc4f6eb5ea42b541057f162...%20Physics.pdf
    for 2) take note that it says DIAMETER is 22 cm. Then use w= 2pi (x6.5)/1, then use V=r w (where r is diameter/2)
    10) you get energy as E=mc^2.
    To convert J to eV divide by e and then divide by 10^9 to get Giga.
    14b) I think it's energy conservation law. The energy after collision is greater, as I remember, but according to the law initial=final total energy.
    Not sure about the significance part :3 Check the mark scheme for that pls
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    (Original post by AvWOW)
    for 2) take note that it says DIAMETER is 22 cm. Then use w= 2pi (x6.5)/1, then use V=r w (where r is diameter/2)
    10) you get energy as E=mc^2.
    To convert J to eV divide by e and then divide by 10^9 to get Giga.
    14b) I think it's energy conservation law. The energy after collision is greater, as I remember, but according to the law initial=final total energy.
    Not sure about the significance part :3 Check the mark scheme for that pls
    Thank you for your help in 2 and 10.
    For 14b, you are right about the conservation of energy part. And, for the significant figures part, they referred to the fact that if we use more significant figures, then the photon wavelength will change.
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    (Original post by AvWOW)
    Why not just use Fleming's RIGHT hand rule?
    We weren't taught the right hand rule, I didn't know you could use that
 
 
 
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