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    (Original post by WanderingWorrier)
    Oui Also, what exam board are you on? AQA don't require any knowledge of valve names at all, which is annoying
    AQA.

    Hmmm... I shall have to re-investigate the B3 spec. :holmes: I had thought they did require you to know the valve names.

    EDIT:
    Huh, looks like you don't need to know them after all! Well it's fun to learn all the same!
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    (Original post by StrangeBanana)
    AQA.

    Hmmm... I shall have to re-investigate the B3 spec. :holmes: I had thought they did require you to know the valve names.
    Nope xD I use the specification when I revise- valves names definitely aren't a requirement
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    (Original post by WanderingWorrier)
    Nope xD I use the specification when I revise- valves names definitely aren't a requirement
    Meh, surplus knowledge is never a bad thing. Guess my biology teacher was rambling and forgot the valve-names weren't on the spec.
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    (Original post by StrangeBanana)
    Meh, surplus knowledge is never a bad thing. Guess my biology teacher was rambling and forgot the valve-names weren't on the spec.
    Surplus knowledge is always a great thing
    Anyways, back to the thread

    To soften permanent hard water, you react it with sodium chloride.
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    (Original post by WanderingWorrier)
    Surplus knowledge is always a great thing
    Anyways, back to the thread

    To soften permanent hard water, you react it with sodium chloride.
    True. You can, but it's by no means the only way

    The direction of an induced current (positive to negative) can be found using the Right Hand Rule.

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    (Original post by Sulfur)
    Yes it is false - it's when a magnet is moved into a coil of wire, not near
    Are you sure? I thought as long as there is a changing magnetic field and the wire cuts through it, a current is induced? :holmes:

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    Isn't found using the left hand rule?
    George only kept Lennie because he was lonely
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    (Original post by majmuh24)
    Are you sure? I thought as long as there is a changing magnetic field and the wire cuts through it, a current is induced? :holmes:

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    That's what I thought too.


    (Original post by majmuh24)
    True. You can, but it's by no means the only way

    The direction of an induced current (positive to negative) can be found using the Right Hand Rule.

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    True, but should it not be negative to positive? Current flows from negative to positive.
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    What is with all these OMAM questions. I do IGCSE English, so all of this is going over my head :/
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    Dw here's a science question for you (;
    The extension of a spring is not directly proportional to the force applied providing that the limit of proportionality is not exceeded
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    (Original post by ennahaspatience)
    Isn't found using the left hand rule?
    George only kept Lennie because he was lonely
    Nah, that's only for a force For induced current, we use the right hand generator rule

    (Original post by rayquaza17)
    That's what I thought too.




    True, but should it not be negative to positive? Current flows from negative to positive.
    It is, I checked up and the actual definition is the rate of change of magnetic flux permeating the wire with respect to time

    Nah, for some reason we use conventional current (even though in a metallic conductor the flow of current is negative to positive, we just take it as positive to negative for the rule. Just one of those things I guess )

    http://en.wikipedia.org/wiki/Fleming...ule_for_motors


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    (Original post by Manexopi)
    Dw here's a science question for you (;
    The extension of a spring is not directly proportional to the force applied providing that the limit of proportionality is not exceeded
    False, it is proportional cos of the spring constant. F=ke and all that

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    (Original post by majmuh24)
    Nah, that's only for a force For induced current, we use the right hand generator rule
    AQA brah? or do I need to revise?
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    (Original post by ennahaspatience)
    AQA brah? or do I need to revise?
    I'm not sure, my teacher might have gone a bit overboard It's all here though

    http://en.wikipedia.org/wiki/Fleming...ule_for_motors

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    John Steinbeck based Lennie's character on a real person he worked with on a ranch who was sent to a mental asylum after killing another ranch worker. True or false?


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    (Original post by pearl_ake)
    John Steinbeck based Lennie's character on a real person he worked with on a ranch who was sent to a mental asylum after killing another ranch worker. True or false?


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    I got this.... True

    For hydrogenation the condition needed is to be heated at 60 degree celsius using hydrogen over an iron catayst
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    We do need to know te right hand rule for AQA idk what the generator is tho... Anyways ^false far as I'm aware xp
    In Romeo and Juliet, Romeo is jealous of death as it has Juliet
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    (Original post by ennahaspatience)
    I got this.... True

    For hydrogenation the condition needed is to be heated at 60 degree celsius using hydrogen over an iron catayst
    Correct. Lennie was a real person!


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    (Original post by pearl_ake)
    Correct. Lennie was a real person!


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    Mr Bruff came to the rescue
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    (Original post by Manexopi)
    We do need to know te right hand rule for AQA idk what the generator is tho... Anyways ^false far as I'm aware xp
    In Romeo and Juliet, Romeo is jealous of death as it has Juliet
    Correct, it is false

    the conditions needed are:


    • heated at 60 degree Celsius
    • using hydrogen
    • over a nickel catayst
 
 
 
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