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The New Leaving Cert Quiz

  • 30-05-2008 8:49pm
    #1
    Registered Users, Registered Users 2 Posts: 1,251 ✭✭✭


    Time for another one of these perhaps?

    I'll start with an easy one. Maths : Give the formula for solving a quadratic equation.


«1

Comments

  • Closed Accounts Posts: 172 ✭✭fivetwenty


    Well . . . Depends what you're looking for, no?

    f(x)=0? b(squared)-4ac? Or is it the double brackets with factoring underneath the original Eq?



    Ok, Physics - What's the device that converts AC to DC Voltage?


  • Registered Users, Registered Users 2 Posts: 1,251 ✭✭✭The Walsho


    Sorry my question was unclear, I meant the b(squared)-4ac one.

    Your question - A diode?

    If so : History - Give two reasons for the Rise Of Fascism in Italy.


  • Closed Accounts Posts: 232 ✭✭boobookitty


    • Mussolini was backed by wealthy industrialists and landowners (b/c of their fear of socialist reforms)
    • March on Rome?

    ENGLISH:

    Fill in the blanks! :)

    "O, the more angel she, / And you the __________(Emilia to Othello 5.2.131)

    "The Moor is of a ____________ / That __________ seem to be so." (Iago to Roderigo 1.3.393-4)
    an old black __ / Is tupping your white ___" (1.1.89-90)


  • Closed Accounts Posts: 154 ✭✭eoins2345


    History 4 strengths and 4 weaknesses of Charles Stewart Parnell as leader of the Home Rule Party?

    Chemistry Define
    1)Rate of Reaction
    2)Hess`s law
    3)The Law Of Conservation

    Business
    Define market research
    Give to advantages of market research
    4 external and internal sources of ideas for a business

    English
    An sample intro to the question ..."Why does the poetry of Derek Mahon appeal to you?"


  • Closed Accounts Posts: 172 ✭✭fivetwenty


    eoins2345 wrote: »
    Business
    Define market research
    Give to advantages of market research
    4 external and internal sources of ideas for a business

    English
    An sample intro to the question ..."Why does the poetry of Derek Mahon appeal to you?"

    A business / enterpriser takes the initiative to find out more about the market in order to gain a better understanding of rival strategies consumer needs and how to satisfy them, by using Internal and External sources.

    Adv: Satisfy Customer needs
    Increases chance of profits
    Saves money off a potentially unsuccessful product

    EXT: Trade Fairs, Trade Magazines, Staff Trips, Internet, Marketing Advisors.

    INT: Brainstorming, Salesforce suggestions, Employee Suggestions, Consumer Feedback.


    English:

    Derek Mahon is a c*nt, but we love him anyway.




    ;)

    Ah no, something like he once described himself as "a strange child with a taste for verse" and a "European poet from Belfast" - I find these self analogies very interesting yada yada yada (even though I really don't)


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  • Registered Users, Registered Users 2 Posts: 6,176 ✭✭✭1huge1


    Answering business question (don't do chemisty and don't study mahon)

    1: market research is the going out and obtaining the research yourself as opposed to desk research which is were you research info already gotten (bit of waffle in there but i know it)
    2: find out what YOU want
    1st hand info (how many points you want)
    3 external= trade fairs, competition, magazaines etc
    internal= sales records, brainstorming...

    Not greatly answered but im knackered

    Ok a geography question:
    give me the basic points of physical side of the paris basin

    business question:
    EU decision making process


  • Closed Accounts Posts: 172 ✭✭fivetwenty


    Still have to do Geog - but Physical aspects, I seem to remember it covers 21km(squared) or something, Flat, low-lying fertile land suitable for farming, consists of the river Rheine & Rhone or something? Cool Temperate Maritime climate?

    As for Business, The Parliament makes a suggestion / puts forward an amendment.
    The XXX reviews it and sends it back to the parliament.
    Parliament make adjustments and send in their final conditions.
    Council Of Ministers review it, get a second opinion from XXX, allows XXX to review it if needed, and they jointly pass the law.
    '
    Can't remember for the life of me who XXX is - Maybe they're the Parliament? I know the groups in total are The Ministers, Court Of Justice, Parliament.

    Anyway, make that my question


  • Closed Accounts Posts: 172 ✭✭fivetwenty


    Ok - The Commission take the Parliaments place, the Parliament = XXX.


  • Registered Users, Registered Users 2 Posts: 149 ✭✭daggy


    How about ...

    The Ampere Definition (physics)? *ack*
    An advantage/disadvantage of an RCD over a MCB ?

    and

    Using first p's of differentiation ,find y= CosX


  • Registered Users, Registered Users 2 Posts: 1,584 ✭✭✭Diarmsquid


    daggy wrote: »
    How about ...

    The Ampere Definition (physics)? *ack*
    The ampere is a current which, if running through two straight parallel conductors of infinite length, of negligible circular cross section, and placed 1 metre apart in a vacuum, would produce a force on the conductors of 2×10–7 newton per metre.

    That's a bitch of a definition.
    daggy wrote: »
    An advantage/disadvantage of an RCD over a MCB ?
    I don't think I do this subject, or I hope I don't. Either way, I dunno what RCD or MCB is...
    daggy wrote: »
    and

    Using first p's of differentiation ,find y= CosX
    f(x) = cosx, let h = a small change in x
    f(x+h) = cos(x+h)

    dy/dx = lim(h -> 0) ( f(x + h) - f(x) ) / h

    f(x+h) - f(x) = cos(x + h) - cos(x)

    cosA - cosB = -2sin((A + B) / 2).sin((A - B) / 2)

    f(x+h) - f(x) = -2sin(( x + h + x ) / 2).sin(( x + h - x ) / 2)

    f(x+h) - f(x) = -2sin(( 2x + h ) / 2).sin( h / 2)

    f(x+h) - f(x) / h = -2sin(( 2x + h) / 2).sin( h / 2) / h

    (multiply above an below by 1/2)

    f(x+h) - f(x) / h = -2sin(( 2x + h) / 2).( sin( h / 2) / (h/2) ). (1/2)

    lim (h -> 0)f(x+h) - f(x) / h = -2sin(( 2x + h) / 2).( sin( h / 2) / (h/2) ). (1/2)

    (sinx/x = 1)

    =-2sin(2x/2).1.(1/2)

    = -sinx

    :cool:


    Accounting:


    What are the limitations of marginal costing?


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  • Closed Accounts Posts: 71 ✭✭nerd3000


    Sorry don't do Accounting

    Business: Ingredients for Global Success..Surprised if anyone knows that..(25 marks) (5 points x 5 marks)


  • Closed Accounts Posts: 40 Nato!


    nerd3000 wrote: »
    Sorry don't do Accounting

    Business: Ingredients for Global Success..Surprised if anyone knows that..(25 marks) (5 points x 5 marks)
    Probably wrong but heres my effort

    1. Single global market.
    Treat the world as one single market by creating global brands to meet the demands of a global consumer
    2. Standardised products.
    Produce identical products in all plants with some slight modifications for some countries e.g. right hand drive in ireland/ left hand drive in france

    thats all i have:confused::confused::confused::confused::confused::confused::confused:


  • Closed Accounts Posts: 60 ✭✭Papercut


    Biology:

    Name the 4 bases of DNA and Distinguish the Purines and Pyrimidines ;)


  • Closed Accounts Posts: 156 ✭✭Riotguy


    ^ Purine: Adenine and Guanine...Pyrimidine: Cytosine and Thymine.

    History: List three weaknesses and three strengths of Isaac Butt as leader of the Home Rule Movement.


  • Closed Accounts Posts: 38 PeteZahut


    for the bases q just learn this......The attorney general is pure....a and g are purine bases;););)...hope dat helps


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    daggy wrote: »
    An advantage/disadvantage of an RCD over a MCB ?

    RCDs are way more sensitive than MCBs.


  • Registered Users, Registered Users 2 Posts: 56 ✭✭pocket aces


    Chemistry: define first ionisation energy

    Physics: what is newton's 2nd law?


  • Closed Accounts Posts: 135 ✭✭salman85


    Chemistry: define first ionisation energy

    Physics: what is newton's 2nd law?

    ammount of energy required to remove the most loosely bound electron from 1 mole of neutral gaseous atoms in their ground state

    gosh i hate that newton guy i think its to do with momentum before bieng equal to momentum after, so here it goes

    when a force acts on a body the momentum before collision is equal to the momentum after collision and acts in the direction of the force


    EDIT: my question
    physics option 1
    name the fundamental forces experienced by hadrons

    give the quark composition for a pion

    chemistry

    define the second ionization energy


  • Registered Users, Registered Users 2 Posts: 784 ✭✭✭Peleus


    salman85 wrote: »
    EDIT: my question

    physics option 1
    name the fundamental forces experienced by hadrons

    give the quark composition for a pion

    chemistry

    define the second ionization energy

    Hadrons feel all four fundamental forces. Ie, Gravitational Force, Electromagnetic Force, Strong Nucleur Force and Weak Nuclear force.

    A pion is up-antidown i think... Its a Meson though.

    My questions:

    French: Give and example of a demonstrative pronoun (in french)

    Maths: Give the formula for the Tan of the angle between two lines

    Physics: Explain Einstein's Photoelectric Law. What is the Work function?

    Applied Maths: State the two laws governing collisions of two bodies?

    Economics: How do banks create credit?


  • Closed Accounts Posts: 773 ✭✭✭Cokehead Mother


    French: Give and example of a demonstrative pronoun (in french)

    Cette? :/

    Maths: Give the formula for the Tan of the angle between two lines

    (m1 + m2)/(1 - m1m2)

    Physics: Explain Einstein's Photoelectric Law. What is the Work function?

    so hf = work function + kinetic energy

    So hf is like the the energy provided

    and then the work function is the minimum energy required to release the energy ( h x threshold freq)

    and then the kinetic energy is the energy the electrons have while moving or something

    Applied Maths: State the two laws governing collisions of two bodies?

    law of conservation of momentum and newton's experimental law of restitution

    Question

    Irish: Five adjectives (in Irish) to decribe the whore in An Triail.


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  • Registered Users, Registered Users 2 Posts: 784 ✭✭✭Peleus



    Cette? :/

    Celui

    thank god i dropped to pass, no more leanring off things on An Triail. I'd say bocht? Ag iompar clainne? can't remember:cool:


  • Registered Users, Registered Users 2 Posts: 1,303 ✭✭✭blue-army


    Geography : Paris Basin


  • Registered Users, Registered Users 2 Posts: 6,176 ✭✭✭1huge1


    blue-army wrote: »
    Geography : Paris Basin
    Bit more specific maybe?

    Ok ill take tertiary

    Id talk about the tourism and go on about all the historic places in the city and eurodisney and they likes
    Id talk about the transport sector, all about the metro, their motorways, give figures here and there. etc
    then id talk about some emplyment areas in services.

    Ok ill ask a geography question aswel.

    Tell me about the mezzogiorno's primary sector.


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    1huge1 wrote: »
    Tell me about the mezzogiorno's primary sector.

    Waffle on about red soils and growing hard wheat used to make pasta and pizza dough... that's all i got :pac:

    Oooh and the mozarella cheese made from the ox milk or somethin... And olives n' stuff.


  • Registered Users, Registered Users 2 Posts: 1,303 ✭✭✭blue-army


    1huge1 wrote: »
    Tell me about the mezzogiorno's primary sector.
    The region has a high %age of illliteracy (30%) and unemployment.
    Even though it holds 40% of Italys population, it only produces 25% of its income per capital..
    Theft, organised crime common...
    Fishing popular near the coast, but ports not up to EU standards.
    Forestry was once popular but overgrazing led to barren land.
    Trees cut down and not replanted...
    Region relies on farming, yet it's underdeveloped and old-fashioned methods...no crop rotation etc...
    Soil poor and infertile....Mountainous Relief!
    Land Reforms created 120,000 new jobs for people in the region....Even though these plots of land were small they gave people a chance to make a living.
    EU Objective 1 region....living standards poor compared with rest of europe..

    Hows that? Would that be enough for an A 1huge1? you seem to be good at geog!

    OK...continuing on the geography theme - Plate tectonics - discuss


  • Registered Users, Registered Users 2 Posts: 6,176 ✭✭✭1huge1


    Ya geography would be one of my strong topics alright, well you have a fair amount of points there and if you develop them well you'd get max srp's. just one thing though how would you relate theft and organised crime to primary activities?

    as for plate tectonics

    Id talk about the structure of the earth (might as well stick it in somewhere)
    then go on about alfred wegener and and his proofs
    then hess and ewings proofs
    then talk about all the types of plate boundries giving examples (e.g divergent mid atlantic ridge)
    and with convergent id talk about oceon-oceon, oceon-land with the oceon being heavier and subducting below etc
    might seem short but I could get a lot out of all that
    id finish the question off talking about earthquakes and volcanoes giving examples e.g kobe japan 1995 €20billion...
    1994 san andreas fault

    ok maybe move away from the geography for a while

    business:

    role of a HRM


  • Closed Accounts Posts: 7 Failure


    • Manpower Planning
    • Performance Appraisal
    • Staffing
    • Training
    • Industrial Relations? :confused:
    Benefits of being a PLC?!?


  • Closed Accounts Posts: 156 ✭✭Riotguy


    ^

    - Potential for raising of huge sums of capital, through public share issues.

    - Unlimited Liability, no shareholder is personally liable for debts incurred by the business itself.

    - Listing of the PLCs name on the Stock Exchange is beneficial for promotion of good image.

    - Financial institutions are more prepared to lend to major organisations such as PLCs, and PLCs attract high-quality staff with range of expertise.

    Bulls**t Bulls**t Bulls**t!

    Biology: Define an abiotic factor, and list three which you investigated during the course of your ecosystem study.


  • Registered Users, Registered Users 2 Posts: 6,176 ✭✭✭1huge1


    ^

    Non living factors

    light
    temp
    air
    water

    waffle on about those

    hmm

    Ok english

    general outline on a question on Donne OR Larkin


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  • Registered Users, Registered Users 2 Posts: 784 ✭✭✭Peleus


    1huge1 wrote: »

    Ok english

    general outline on a question on Donne OR Larkin

    I Don't do them so i'll give you Mahon:

    Poet of Place and Objects:
    -->titles contain placenames (Co. Wexfork, Portrush...)
    -->Description of place is v good ( Chinese Rest, As it should be, Disused shed in Co. Wexford... "deep in the ground of a burnt out hotel")
    -->Only objects in most of his poems (Rathlin, Disused Shed)

    Stands up for underdogs in History
    -->After the Titanic (Bruce Ismay > "Include me in your lamentations")
    -->Disused Shed ("Lost people of Treblenka and Pompeii, "save us, save us," they seem to say")
    -->Antarctica ("I'm just going outside and may be sometime, at the heart of the ridiculous, the sublime")
    -->Rathlin (?)

    Physics: Give two properties of the Weak Nuclear Force
    French: Est ce qu'il vous est arrivé d'avoir peur? Décrivez vos sentiments. Write out a plan to this
    English: "Rich can be described as both a personal and political poet" Do you agree with this statement? (Plan)


  • Registered Users, Registered Users 2 Posts: 1,303 ✭✭✭blue-army


    OK....emm Philip Larkin.

    England'd finest pre-war poet.
    Born Covertry 1922...Led a 'coloured childhood'.
    Only child + constant tentions between his parents.
    Led to him becoming shy & self conscious...stammer etc...
    Described his parents saying "they weren't very good at being happy" and summed up his childhood as being "a forgotten boredom."
    Stopped writing 10yrs before he died claiming he'd lost his inspiration....

    Church Going
    Thought Provolking...religious poem by an athiest etc
    Trying to find out churchs' meaning..
    Atmospheric poem...onomatopaeia, imagery etc...

    An Arundel Tomb..
    about aging statue of Lord Arundel and his wife....Theme = passage of time/ changes.....People only see the statue as a symbol of love...whereas If times hadn't changed so much (and people could read the latin on the statue) they would know of his many victories etc...

    The Whitsun Weddings...
    Happy poem...describing his train journey from hull 2 london....describe things he can see from carriage window etc... imagery
    characters you can realte to when he arrives at the wedding...

    MCMXIV
    about the "long uneven lines" of men queuing up to enlist in the army...resembles lines to get into a sporting event at "The Oval or Villa Park" on an "August Bank Holiday lark"
    Sympathy towards these brave men....

    Conclusion...enjoyed his poetry..highly recommend his work blah blah blah...

    :D

    any good?


  • Closed Accounts Posts: 82 ✭✭hippety-pippety


    Peleus wrote: »

    Physics: Give two properties of the Weak Nuclear Force
    French: Est ce qu'il vous est arrivé d'avoir peur? Décrivez vos sentiments. Write out a plan to this
    English: "Rich can be described as both a personal and political poet" Do you agree with this statement? (Plan)

    Physics: 2 properties of the weak nuclear:

    responsible for beta-decay (pls say i'm right!)
    short range
    felt by all particles (thats 3 i know bt just to b sure)

    French: don't understand the q..does it mean "have you ever been afraid?"
    i think i answered a q about being afraid in the mock. i told a realy sh1t story about when i ws young & got lost, using very bad french. got a b though :)

    English: i hate rich! but yeah, she is political, um, because she was an activist or something, she's a feminist, politics is part of her being or consciousness or something :confused: and she's also personal because she writes from her own experiences a lot, etc.

    physics: what are x-rays?
    what is the cockcroft-walton experiment famous for? (3 points)

    biology: give a brief description of how protein synthesis occurs in the cell
    give an example of symbiotic bacteria in the alimentary canal


  • Closed Accounts Posts: 156 ✭✭Riotguy


    Protein Synthesis

    1. Initiation: Enzymes cause DNA to unwind, at the site where synthesis is to take place.

    2. Transcription: Complementary RNA bases move into the nucleus from the cytoplasm and bond with one exposed strand of DNA. RNA polymerase joins the RNA bases to form mRNA.

    3. Translation: mRNA moves from the nucleus to the small sub-unit of a ribosome. tRNA moves to the large sub-unit. tRNA anticodons join with complementary mRNA codons and appropriate amino acids are detached. Ribosome constructs proteins from the amino acids.

    - Bacteria in the colon of the large intestine produce Vitamins B and K in return for food and shelter.

    Business:
    Functions of the Director of Consumer Affairs? 4x5 marks.


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    physics: what are x-rays?
    what is the cockcroft-walton experiment famous for? (3 points)

    X-Rays are electromagnetic waves with high frequency and short wavelength.
    Cockroft-Walton Experiment split the atom.


    Physics Q: In the F against A experiment, using the trolley and the weights over the pulley, why must you put the weights onto to the trolley when they are removed from the end of the string?

    Chemistry Q: In the bleach titration, why can't you use "thick" type bleach? And why must the bleach be diluted?


  • Registered Users, Registered Users 2 Posts: 784 ✭✭✭Peleus


    Parsley wrote: »
    X-Rays are electromagnetic waves with high frequency and short wavelength.
    Cockroft-Walton Experiment split the atom.


    Physics Q: In the F against A experiment, using the trolley and the weights over the pulley, why must you put the weights onto to the trolley when they are removed from the end of the string?

    I didn't know you had to do that but...

    F=ma
    so since you are measuring acceleration at differnent forces the mass of the system must be kept constant. taking the weights off without putting them on the trolley would be taking mass from the system, thereby creating an error in you results.

    Physics:
    In the experiment to measure equilibrium for coplanar forces, why must the spring balances be kept at right angles to the meter stick?
    physics:
    what is the cockcroft-walton experiment famous for? (3 points)

    It was the first transmutation of a nucleus by artificially accelerated particles. By firing protons at the nucleas of a Lithium atom two alha particles were produced. give eqt...


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  • Closed Accounts Posts: 773 ✭✭✭Cokehead Mother


    Peleus wrote: »
    Physics:
    In the experiment to measure equilibrium for coplanar forces, why must the spring balances be kept at right angles to the meter stick?

    So that the forces are perpendicular to the distance. In the formula M = Fd, d refers to the perpendicular distance.
    Peleus wrote: »

    It was the first transmutation of a nucleus by artificially accelerated particles. By firing protons at the nucleas of a Lithium atom two alha particles were produced. give eqt...

    7_3 Li + 1_1 p -> 4_2 He + 4_2He + E

    And the E turned to be equal to mc^2 which proved Einstein's equation.

    There's a load of unanswered questions on this page so I'll refrain from asking one.


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    Peleus wrote: »
    I didn't know you had to do that but...

    F=ma
    so since you are measuring acceleration at differnent forces the mass of the system must be kept constant. taking the weights off without putting them on the trolley would be taking mass from the system, thereby creating an error in you results.

    Correctamundo!


  • Registered Users, Registered Users 2 Posts: 674 ✭✭✭kaki


    Chemistry:

    1) You shouldn't use thick bleach, as it can't be diluted to a homogenous solution, because of it's tendency to sink to the bottom.

    2) You must dilute the bleach, because household brands are too strong, and undiluted bleach would require massive amounts of potassium iodide and H2SO4


    Okay, my question(Chemistry agan): why is the disodium salt of EDTA used in the water hardness exp., as opposed to regular EDTA?


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    kaki wrote: »
    Chemistry:

    1) You shouldn't use thick bleach, as it can't be diluted to a homogenous solution, because of it's tendency to sink to the bottom.

    2) You must dilute the bleach, because household brands are too strong, and undiluted bleach would require massive amounts of potassium iodide and H2SO4


    Okay, my question(Chemistry agan): why is the disodium salt of EDTA used in the water hardness exp., as opposed to regular EDTA?

    Re your first answer, we were told it was cos the thickening agents interfere with the reaction and result in an innaccurate endpoint.

    Ummm, shot in the dark here, but is it cos it's a primary standard? :o


  • Registered Users, Registered Users 2 Posts: 674 ✭✭✭kaki


    Oh, okay, thanks!

    And the disodium salt is used because EDTA itself is really unsoluble.


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  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    kaki wrote: »
    Oh, okay, thanks!

    And the disodium salt is used because EDTA itself is really unsoluble.

    Ah, I'll remember that one now!

    More chemistry, as it's the easiest to quiz on- Explain Pauli's exclusion principle, the Aufbau principle and Hund's Rule of maximum multiplicity.


  • Closed Accounts Posts: 135 ✭✭salman85


    Parsley wrote: »
    Ah, I'll remember that one now!

    More chemistry, as it's the easiest to quiz on- Explain Pauli's exclusion principle, the Aufbau principle and Hund's Rule of maximum multiplicity.

    no idea becuase its unlikely to come up

    maximum multiplicity i think is to with electrons being as far as possible from each other in pairs

    but dont care either way

    chemistry :: in the clove oil exp why are whole cloves used instead of ground (RSP 2002) 12 marks (2 reasons atleast i think)

    physics :: how to demonstrate lenz's law.

    give the formula for neuclear disintigration


  • Registered Users, Registered Users 2 Posts: 674 ✭✭✭kaki


    Pauli's: No more than 2 electrons can occupy an orbital, and they must have opposite spin.

    Aufbau: When building up the electronic configuration of an atom, electrons occupy the lowest available energy level

    Hund's: If two or more orbitals of equal energy are available, electrons occupy them singly before filling them in pairs

    Questions: Chemistry: To which region of the spectrum do the following series refer?

    1) Paschen

    2) Ballmer

    3) Lyman


  • Closed Accounts Posts: 135 ✭✭salman85


    kaki wrote: »
    Pauli's: No more than 2 electrons can occupy an orbital, and they must have opposite spin.

    Aufbau: When building up the electronic configuration of an atom, electrons occupy the lowest available energy level

    Hund's: If two or more orbitals of equal energy are available, electrons occupy them singly before filling them in pairs

    Questions: Chemistry: To which region of the spectrum do the following series refer?

    1) Paschen

    2) Ballmer

    3) Lyman

    1st 2nd and 3rd energy levels?

    unlikely to come up as well.


  • Registered Users, Registered Users 2 Posts: 674 ✭✭✭kaki


    Dude, those are exactly the type of things that come up in Q4

    Paschen= Infra red
    Ballmer=Visible
    Lyman=UV


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    salman85 wrote: »
    chemistry :: in the clove oil exp why are whole cloves used instead of ground (RSP 2002) 12 marks (2 reasons atleast i think)

    physics :: how to demonstrate lenz's law.

    give the formula for neuclear disintigration

    Whole cloves because ground cloves have lost most of their oil.

    I know Lenz's law but not sure about demonstration...

    Nuclear disintigration? Beta and alpha radiation decay?

    Alpha - a/b X -> a-4/b-2 Y Beta - a/b X -> a/b+1 Y


  • Closed Accounts Posts: 135 ✭✭salman85


    Parsley wrote: »
    Whole cloves because ground cloves have lost most of their oil.

    I know Lenz's law but not sure about demonstration...

    Nuclear disintigration? Beta and alpha radiation decay?

    Alpha - a/b X -> a-4/b-2 Y Beta - a/b X -> a/b+1 Y

    DN/DT

    lenz's law = magnet and a non magnet inside a tube, magnet falls slower, non magnet falls fast
    waffle about induced EMF

    and

    i have done nearly all question 4s, never came across these, or i skiped em by choice

    uncertenty principle comes up
    rutherford comes up
    bohr comes up
    we didnt even learn that crap in class,
    if your going for A1s then yeah its probably worth knowing them, but if you are going for A1, its unlikely you will do question 4 unless you know the whole course inside out.


  • Registered Users, Registered Users 2 Posts: 674 ✭✭✭kaki


    Lenz' Law demo: Take a piece of hollow copper tubing, with a small metal cylinder, and a small cylindrical magnet. Drop the metal through first, note time taken. Now drop the magnet. It will take far longer to travel through due to the change in flux linking the copper pipe caused by the magnet, which induces an emf that opposes the movement of the magnet.

    What about some Irish prose? List the filming techniques used in Clare sa Speir?


  • Registered Users, Registered Users 2 Posts: 674 ✭✭✭kaki


    if your going for A1s then yeah its probably worth knowing them, but if you are going for A1, its unlikely you will do question 4 unless you know the whole course inside out.

    Well, I think that, generally, a person that deserves an A1 ought know the whole course inside out. For any subject. But this is off topic...


  • Closed Accounts Posts: 3,144 ✭✭✭Parsley


    I know that copper tube yoke, just forgot that it was lenz's law being demonstrated.

    Didn't do clare sa speir, ah well!


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