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    (Original post by Amywillrevise)
    Did anyone get 12 for the half life question? I see people saying they got 9, some saying 12. Which is right?????
    12 is right. 80-10 is 3 half lives. 36/3 = 12.
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    (Original post by Amywillrevise)
    Did anyone get 12 for the half life question? I see people saying they got 9, some saying 12. Which is right?????
    I got 9!


    The roots of education are bitter, however the fruit is sweet.
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    Oh no I just worked it out and 9 is right!!! Damn I was wrong :'(
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    (Original post by rohanl98)
    Was the first question... It was directly proportional and then I chose C for the next...?
    i got that too!
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    For the seatbelt question i said the large amount of force transferred from kinetic energy in such a short time can be fatal for the people in the car so seat belts absorb energy as elastic potential energy and increase the impact time
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    (Original post by Gobygaga)
    I got 22.5
    Well I'm sure Ive got about 7/60 in that exam


    The roots of education are bitter, however the fruit is sweet.
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    (Original post by amygardiner)
    For the seatbelt question i said the large amount of force transferred from kinetic energy in such a short time can be fatal for the people in the car so seat belts absorb energy as elastic potential energy and increase the impact time
    Was I wrong to mention momentum?


    The roots of education are bitter, however the fruit is sweet.
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    (Original post by Amywillrevise)
    Did anyone get 12 for the half life question? I see people saying they got 9, some saying 12. Which is right?????
    I got 12 by doing 36/3

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    Who else got virtually incompressible for the feature of liquids that means the pressure is the same
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    (Original post by Amywillrevise)
    Did anyone get 12 for the half life question? I see people saying they got 9, some saying 12. Which is right?????
    Wait what was the half life question??
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    (Original post by maxjackson5)
    For the how much energy transferred was transferred by a 12V bulb on a normal current for 30 seconds question.

    Everyone got 360J, but I am 95% sure it was 612J. Anybody get either of these answers?
    I got 1.7 from the graph, then 51 (should've been coulombs but I put watts!), then 612 like you.
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    The exam was easier than I expected it to be.
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    (Original post by tsr1807)
    Was I wrong to mention momentum?


    The roots of education are bitter, however the fruit is sweet.
    I wouldn't think so, if you mentioned the law of conservation of mass it would be relevant i guess
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    (Original post by Hneedham)
    Done the exam, help on plum pudding
    They believed the centre was positively charged
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    It was 12.

    It takes 3 half life's to get from 80 to 10, and it was 36 years for all three to happen, so 36/3 is 12 years.

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    (Original post by Amywillrevise)
    Oh no I just worked it out and 9 is right!!! Damn I was wrong :'(
    You were not wrong. 80 to 40 = 1 half life, 40 to 20 = 2 half lives, 20 to 10 = 3 half lives. 36 divided by 3 = 12. Sorry to anyone who put 9, that's wrong!
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    What did everyone say for the last question? I said that when the rocket launched closer to a 90 degrees angle it got to a higher height? No idea if that's right
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    u just lost ur house
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    (Original post by Amywillrevise)
    What did everyone say for the last question? I said that when the rocket launched closer to a 90 degrees angle it got to a higher height? No idea if that's right
    I said as the angle of projection increases, the range decreases. So basically I put what you put, not sure how that is 2 marks though?
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    (Original post by 11Jason11)
    Who else got virtually incompressible for the feature of liquids that means the pressure is the same
    Damn it I put the pressure/force is transmitted through the liquid equally in all directions??

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