Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

***JC 2014 Science - Thu. June 12th 2014 - all levels***

Options
24

Comments

  • Options
    #32
    jenbar09
    Registered Users Posts: 9 ✭jenbar09


    ECM1234 wrote: »
    Did snyone get 1300 for the resistance?

    I did, and when I got like 0.00456 or something. I thought my answers were totally wrong. Fot the density of the apple, I got the volume but totally forgot the mass.


  • Options
    #33
    ECM1234
    Closed Accounts Posts: 225 ✭✭ECM1234


    I deffinately got the bike q wrong


  • Options
    #34
    DanielChester
    Registered Users Posts: 53 ✭✭DanielChester


    ECM1234 wrote: »
    Did snyone get 1300 for the resistance?

    I did.


  • Options
    #35
    coolerboy
    Registered Users Posts: 589 ✭✭✭coolerboy


    ECM1234 wrote: »
    I deffinately got the bike q wrong

    It was it reduced friction


  • Options
    #36
    Liordi
    Registered Users Posts: 2,226 ✭✭✭Liordi


    jenbar09 wrote: »
    Fot the density of the apple, I got the volume but totally forgot the mass.

    Was there figures in the question?
    I think I said to place the apple on a weighing scales to calculate the mass and then use an overflow can to find the volume.


  • Advertisement
  • Options
    #37
    DanielChester
    Registered Users Posts: 53 ✭✭DanielChester


    Liordi wrote: »
    I know I did the ferris wheel question wrong.
    Really odd to appear on Science and didn't think I would have to use circle formulas in a science exam.

    Think I just divided 60/.25

    It asked you to calculate the work. Work is force(n) * distance which in this case was the radius.


  • Options
    #38
    luimneachabu
    Registered Users Posts: 9 ✭luimneachabu


    What was the general name for the liquid in the beaker in the distillation experiment?


  • Options
    #39
    ECM1234
    Closed Accounts Posts: 225 ✭✭ECM1234


    coolerboy wrote: »
    It was it reduced friction

    I thought they were on about corrosion, but then I realised that that is chemistry :L I then said that water deteriorates the rubber :L


  • Options
    #40
    coolerboy
    Registered Users Posts: 589 ✭✭✭coolerboy


    What property of oxygen make it go to the top of the beaker ?
    I said the downward displacement of air.

    Edit-i meant the upward displacement of oxygen


  • Options
    #41
    emersyn
    Registered Users Posts: 430 ✭✭emersyn


    luimneachabu wrote: »
    What was the general name for the liquid in the beaker in the distillation experiment?

    Just water I think


  • Advertisement
  • Options
    #42
    Gerrymandering reborn
    Registered Users Posts: 302 ✭✭Gerrymandering reborn


    I found the test for protein question HARD.


  • Options
    #43
    emersyn
    Registered Users Posts: 430 ✭✭emersyn


    coolerboy wrote: »
    What property of oxygen make it go to the top of the beaker ?
    I said the ddownward displacement of air.

    I said it was less dense, wasn't sure though


  • Options
    #44
    Liordi
    Registered Users Posts: 2,226 ✭✭✭Liordi


    DanielChester wrote: »
    It asked you to calculate the work. Work is force(n) * distance which in this case was the radius.

    I'm talking about the part where you had to calculate the seconds it took to go around the ferris wheel, but apparently I need the circumference for that.

    I got part (i) right, think I multipled 60 x 800?


  • Options
    #45
    Gerrymandering reborn
    Registered Users Posts: 302 ✭✭Gerrymandering reborn


    emersyn wrote: »
    Just water I think

    I'm pretty sure it's water.


  • Options
    #46
    Liordi
    Registered Users Posts: 2,226 ✭✭✭Liordi


    emersyn wrote: »
    I said it was less dense, wasn't sure though

    I said this as well, couldn't think of anything else.


  • Options
    #47
    ECM1234
    Closed Accounts Posts: 225 ✭✭ECM1234


    coolerboy wrote: »
    What property of oxygen make it go to the top of the beaker ?
    I said the ddownward displacement of air.

    Oxygen is denser than air


  • Options
    #48
    coolerboy
    Registered Users Posts: 589 ✭✭✭coolerboy


    luimneachabu wrote: »
    What was the general name for the liquid in the beaker in the distillation experiment?

    Distillate


  • Options
    #49
    DanielChester
    Registered Users Posts: 53 ✭✭DanielChester


    coolerboy wrote: »
    What property of oxygen make it go to the top of the beaker ?
    I said the ddownward displacement of air.

    I said it can be compressed.


  • Options
    #50
    MissCupcake
    Registered Users Posts: 204 ✭✭MissCupcake


    emersyn wrote: »
    Just water think


    filtrate


  • Options
    #51
    MangoMachine
    Registered Users Posts: 149 ✭✭MangoMachine


    coolerboy wrote: »
    What property of oxygen make it go to the top of the beaker ?
    I said the ddownward displacement of air.

    Less dense maybe?


  • Advertisement
  • Options
    #52
    MissCupcake
    Registered Users Posts: 204 ✭✭MissCupcake


    ECM1234 wrote: »
    Oxygen is denser than air

    I think its because its only slightly souble in water thats what my textbook aaod I think


  • Options
    #53
    ConorFTW
    Registered Users Posts: 15 ✭ConorFTW


    emersyn wrote: »
    I got the diameter of the ferris wheel and then I multiplied it by the 0.25 seconds given, I rounded the answer to 25 minutes I think

    Me too! I got 25.13 recurring and rounded it off to 25 minutes. I used my experience of being on the London Eye and felt the answer made some but of sense. Biology was so easy


  • Options
    #54
    DanielChester
    Registered Users Posts: 53 ✭✭DanielChester


    Liordi wrote: »
    I'm talking about the part where you had to calculate the seconds it took to go around the ferris wheel, but apparently I need the circumference for that.

    I got part (i) right, think I multipled 60 x 800?

    It asked you to calculate the T. DST T = D/S. The distance was the radius * 2 or the diameter. And the speed was given in the question.


  • Options
    #55
    DanielChester
    Registered Users Posts: 53 ✭✭DanielChester


    And secondly the answer was 8 minutes, it was a whole number.


  • Options
    #56
    Liordi
    Registered Users Posts: 2,226 ✭✭✭Liordi


    DanielChester wrote: »
    It asked you to calculate the T. DST T = D/S. The distance was the radius * 2 or the diameter. And the speed was given in the question.

    Oh, I know how to do it now, I just thought it was confusing for a science paper, if it was on maths paper chances are I'd have done it right. :pac:


  • Options
    #57
    MissCupcake
    Registered Users Posts: 204 ✭✭MissCupcake


    ConorFTW wrote: »
    Me too! I got 25.13 recurring and rounded it off to 25 minutes. I used my experience of being on the London Eye and felt the answer made some but of sense. Biology was so easy

    same left mine in seconds though


  • Options
    #58
    ECM1234
    Closed Accounts Posts: 225 ✭✭ECM1234


    DanielChester wrote: »
    And secondly the answer was 8 minutes, it was a whole number.

    If my answer was in seconds, would it be ok?


  • Options
    #59
    jenbar09
    Registered Users Posts: 9 ✭jenbar09


    I said that the distillation one was alcohol, as it has a boiling point of 78 degrees and water is 100 and then said the water going on the outside changes the state of the alcohol from gas to liquid. I looked over it last night, glad I did.


  • Options
    #60
    DanielChester
    Registered Users Posts: 53 ✭✭DanielChester


    ECM1234 wrote: »
    If my answer was in seconds, would it be ok?

    Yeah, that should be okay.


  • Advertisement
  • Options
    #61
    Gerrymandering reborn
    Registered Users Posts: 302 ✭✭Gerrymandering reborn


    Liordi wrote: »
    Oh, I know how to do it now, I just thought it was confusing for a science paper, if it was on maths paper chances are I'd have done it right. :pac:

    But this wasn't a maths paper now was it?


Advertisement