A levels 2008! Where is everyone??
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you managed to complete the essay?? All the bio q so hard everything application q memo also no use 1! haha only pray p1 and p3 easier=X
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Originally posted by xXxTaboOxXx:
you managed to complete the essay?? All the bio q so hard everything application q memo also no use 1! haha only pray p1 and p3 easier=X
cos i start from essay first wad. 20 marks out of 100 leh.and qsn 8 is easy, compared to qsn 9. 9 is like "WTH", asking about classification. a 20 marks qsn on classification, taxonomy.
the genetic diagram wasted alot of my time. in the end still wrong. think i only get 2 marks from drawing the punnett square.
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btw, any prediction for chem p2 next tues?
chem p3 was relatively then the phy and bio papers.
so i guess chem p2 must be a killer paper.
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Haha I can't figure out the parental genotype. And i don't even know what genetype will result in which phenotype so i can't do the whole q.
I tink the structured q is a gone case!
Bio is seriously screwed=X
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Chem p2 maybe focus on kinetics, ionic & chem eqm, energetics and electrochem.
Nitrogen cpds proteins n hydroxy cpds didn't came out. Transition elements 2!
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Originally posted by xXxTaboOxXx:
Haha I can't figure out the parental genotype. And i don't even know what genetype will result in which phenotype so i can't do the whole q.
I tink the structured q is a gone case!
Bio is seriously screwed=X
genetype is EeRr.recessive epistasis. 9: 4: 3 ratio.cos self cross, and in offspring, purple, red and white are present, therefore both set of recessive alleles must be present.
the only trouble is with identify which one of the 2 recessive allele is the epistatic one.
since i dunoe how to get the genotypic and phenotypic ratio, the rest of the qsn cannot do liao.
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woah haha i managed to guess the parental phenotype correctly=) But i got stuck aft drawing the punnett sq too=X
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Pardon me..... but I had my A-levels a few years back,
I have a sibling who is having her A-Levels this year, hence I'm also concened about this year's A-Level papers. It seems from the responses that you guys give... the papers must be freaking hard. Even my sibling also had the same feeling....Well... very excited to hear the results next year.
Meanwhile.....Jia You!!!
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dunoe whether this is hard, as compared to the old syllabus. Eagle seems to find it easy, which is kinda demoralising.
but it is definitely much much harder than last yr's.
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theyre harder than the normal qns you find in the tys
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This yr 1 super hard! gp geog physics bio maths all hard! Its not easy!
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Originally posted by jaydunkfull:
theyre harder than the normal qns you find in the tys
i never do the tys. it is in mint condition. :)did the prelims paper though.
it seems that most schools didn't expect such a sharp increase in difficulty of paper.
there were rumors that after the (supposed) heavy moderations last year, SEAB may not moderate so much this yr, but most schools still expect the standards to remain roughly the same. so most ppl were caught under-prepared....
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and from the discussions, i can see that not only in my school, but across schools, how lousy i am
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so im guessing there would be a drop in performance for our year? anyway, it seems hardly realistic that more than three quarters of the cohort from top jcs get more than 3 H2 distinctions, like rj and hci. that was their performance last year.
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my chem teacher told us to chiong tys after prelims cos the real paper wouldnt be the prelims standard. but for math and physics, my teachers advised us to continue practising prelim papers instead of tys...
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Originally posted by jaydunkfull:
so im guessing there would be a drop in performance for our year? anyway, it seems hardly realistic that more than three quarters of the cohort from top jcs get more than 3 H2 distinctions, like rj and hci. that was their performance last year.
now u know why. they probably over-prepared for the 1st yr of new syllabus. when it turn out to be so easy, i think they would have drop their standards and expectations.so maybe thats why some of the IP JCs prelims paper roughly the same standard than A levels. it is suppose to be much harder than A levels.
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Question on work energy power
November 1999 P3 Q1
(a) Starting with the definition of work, deduce the change in the gravitational potential energy of a mass m, when moved a distance h upwards against a gravitational field of field strength g.
(b) By using the equations of motion, show that the kinetic energy Ek of an object of mass m travelling with speed v is given by Ek = ½mv²
(c) A cyclist, together with his bicycle, has a total mass of 90 kg and is travelling with a constant speed of 15 ms-1 on a flat road at A, as illustrated in the figure below. He then slide down a small slope to B so descending 4.0m.
Calculate
(i) the kinetic energy at A,
(ii) the loss of potential energy between A and B, and
(iii) the speed at B, assuming that all the lost potential energy is transformed into kinetic energy of the cyclist and the bicycle.
(d)
(i) A cyclist is travelling at a constant speed of 15 ms-1 on a level road provides a power of 240 W. Calculate the total resistive power.
(ii) The cyclist now travels at a higher constant speed. Explain why the cyclist needs to provide a greater power.
(e) It is often stated that many forms of transport transform chemical energy into kinetic energy. Explain why a cyclist travelling at constant speed is not making this transformation. Explain what transformations of energy are taking place. -
which jc are u all from?i hope the rjc vjc ppl think that the papers are hard too.
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Originally posted by lyx90:
which jc are u all from?i hope the rjc vjc ppl think that the papers are hard too.
So what if they think its hard?Funny logic.
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Originally posted by lyx90:
which jc are u all from?i hope the rjc vjc ppl think that the papers are hard too.
u really think rjc and vjc pple are smarter?
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Originally posted by eagle:
u really think rjc and vjc pple are smarter?
It's quite an obvious fact that rjc, vjc, hci etcs get most of the distinction. what i hope he meant was that if they find it hard then the A's probably can go else where.
I hope he doesn't mean what you interpreted. It kinda disgust me to know that people actually look up to the jcs mentioned above and look down on neighbourhood ones.
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(a) State two properties of glass which makes it a particularly suitable material to use in the construction of a mercury-in0glass thermometer.
(b) Contrary to popular opinion, mercury expands only a small amount when it is heated; there are many liquids which expand a great deal more. State two reasons why mercury is still often used in thermometers. -
Originally posted by eagle:
(a) State two properties of glass which makes it a particularly suitable material to use in the construction of a mercury-in0glass thermometer.
(b) Contrary to popular opinion, mercury expands only a small amount when it is heated; there are many liquids which expand a great deal more. State two reasons why mercury is still often used in thermometers.
I thought this is O level stuff?(a) Glass is transparent and allows for easy reading of the height of the mercury in the thermometer. Glass also has a high melting point which is usually higher than the maximum temperature a mercury-in-glass would measure.
(b) Mercury expands at a uniform rate? The using of a liquid which expands at a smaller rate allows for the measure of a larger range of temperature over each unit length?
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How did you guys find the math papers? I counted my math p2 marks and I only got 61 marks confirm guarantee plus chop correct. The rest maybe wrong or I don't know how to do. DIE!!
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The bio paper 2 qns were the toughest I have ever seen!! Esp the crossing and the stupid galapagos finches! Even the first qn was so tricky. How to know why the distance between the 2 poles of spindle will decrease slightly then increase again? Dno if my ans correct or not!
Since chem paper 3 was so easy, you guys think the p1 and p2 will be damn difficult?
Also, if math papers altogther average 60 plus marks, you guys think can get at least B?
I'm damn worried for my future!!!!!
