IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => GCE AS & A2 Level => Queries => Topic started by: mz on May 12, 2010, 08:25:54 pm
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ok so the physics MCQ paper is in 6 days...so if anybody has some tips and techniques for paper 1, please share them!
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for which igcse,gce-olevel,as,alevel
??? ???
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for which igcse,gce-olevel,as,alevel
??? ???
paper 1 is AS
for me2 i want tips for AS cie multiple choice paper
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i am a student of IGCSE
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heheh lool okek no probz ;D
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i meant AS level
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r u angry with me halosh92
i am sorry i hoe u donot mind it at all
REPLY ME NOW ONLY
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WAITING FOR UR REPLY FAST ???
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r u angry with me halosh92
i am sorry i hoe u donot mind it at all
REPLY ME NOW ONLY
angry??????????? ??? ??? ??? ???
no why would u say that :D :D :D
u didnt do anything :D ;D
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still waiting for the tips
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i have an AMAZING tip for you guys, i just hope you appreciate it! :P
for example, in a question where they ask you about what is the forumla of blah blah blah, something we didnt take, but you have to derive it from forumals we took and with information they give in a diagram for example, teachers might start doing all kinds of derivation! but!!!
there's a much much much much easier way, since all four choices are going to be equations obviously then CHECK FOR HOMOGENEITY, and then two at least have to cancel out......and then for example in one of the question it asked for the acceleration in a specefic time, and from the two left equations ( the homogenous ones) only ONE had time difference (t2-t1) and the other had only t2, and therefore it had to be the first.
it doesnt work ALL the times, because they may give you all homogenous equations, then you actually have to derive it, but its useful :)
and by the way this was said by an examiner that students do find out much easier methods of solving hard questions
and ANOTHER thing, in that momentum question that's always repeated, it has a very long derivation to get to the answer! but a quick tip, check the directions of the velocities and just re arrange the law of momentum equation and thats it ;)
good luck all :D
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i have an AMAZING tip for you guys, i just hope you appreciate it! :P
for example, in a question where they ask you about what is the forumla of blah blah blah, something we didnt take, but you have to derive it from forumals we took and with information they give in a diagram for example, teachers might start doing all kinds of derivation! but!!!
there's a much much much much easier way, since all four choices are going to be equations obviously then CHECK FOR HOMOGENEITY, and then two at least have to cancel out......and then for example in one of the question it asked for the acceleration in a specefic time, and from the two left equations ( the homogenous ones) only ONE had time difference (t2-t1) and the other had only t2, and therefore it had to be the first.
it doesnt work ALL the times, because they may give you all homogenous equations, then you actually have to derive it, but its useful :)
and by the way this was said by an examiner that students do find out much easier methods of solving hard questions
and ANOTHER thing, in that momentum question that's always repeated, it has a very long derivation to get to the answer! but a quick tip, check the directions of the velocities and just re arrange the law of momentum equation and thats it ;)
good luck all :D
gr8 stuff +rep
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THANKYOU!!!
one more thing that i sometimes do, when i forget any formula, i look at the options given and concentrate on the units they've given, and then calculate the value according to those units...this has particularly been helpful in questions related to electric fields, because i always forget the formulae....for example if in the options given, the units quoted are NC^-1, i instantly know that i have to divide the force by charge, and viola!
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THANKYOU!!!
one more thing that i sometimes do, when i forget any formula, i look at the options given and concentrate on the units they've given, and then calculate the value according to those units...this has particularly been helpful in questions related to electric fields, because i always forget the formulae....for example if in the options given, the units quoted are NC^-1, i instantly know that i have to divide the force by charge, and viola!
your welcome :)
and yeah thats a good method :)
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ok so can anyone explain how we get the uncertainty in this question----> june 99/1/question 2
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ok so can anyone explain how we get the uncertainty in this question----> june 99/1/question 2
i dont have the paper, please post it here? :)
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i dont have the complete paper either, just the compiled mcqs in a book...do you have classified physics or pure 1000 physics mcqs?
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i dont have the complete paper either, just the compiled mcqs in a book...do you have classified physics or pure 1000 physics mcqs?
nop, i have a past paper booklet in year form from june 2000
cant you post the question?
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how do i attach a photo?
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how do i attach a photo?
when your replying press additional options under the text box :)
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No P1 tips.
Try PG tips
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oh! thanx! ok so the question might not be so clear so i'll write that down here:
A student attempts to measure the diameter of a steel ball by using a meter rule to measure four similar balls in a row.
The student estimates the positions on the scale as follows:
X-(1.0 +- 0.2)
Y-(5.0 +- 0.2)
What is the diameter of a steel ball together with it's associated uncertainty?
A. (1.0 +- 0.05)
B. (1.0 +- 0.1)
C. (1.0 +- 0.2)
D. (1.0 +- 0.24)
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and another one
two species of ant have the same shape but all the linear dimensions of the giant ant are X times those of the normal ant. assume that the weight each ant can lift depends only on the cross sectional area of it's muscles.
if the relative strength of an ant is defined as the weight it can lift divided by its own weight, what is the value of the ratio
relative strength of the giant ant/relative strength of the normal ant?
A. 1/X^3 C. 1
B. 1/X D. x
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C
5-1=4
error =0.2/sqrt(4)=0.1
this error at either end so C
B wigth it can lift is proportional to X^"
wieght of ant is proportional to volum=X^3
X^2/X^3=1/X
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nov 2008 paper 1 AS cie physics
Q1
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In 1s it travels 3*10^8m
number of wavelengths=3*10^8/(600*10^(-9))=3*10^8/(6*10^(-7))=0.5*10^15=5*10^14
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In 1s it travels 3*10^8m
number of wavelengths=3*10^8/(600*10^(-9))=3*10^8/(6*10^(-7))=0.5*10^15=5*10^14
okay thxx
how to do Q4 same paper
thx alot
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B
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B
no its D
but how ?? ???
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19.8-1%
2.02+1%
looks like they added uncertainty to uncertainty
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19.8-1%
2.02+1%
looks like they added uncertainty to uncertainty
could you be more specific plzz?
isnt there a rule for this? ??? ???
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C
5-1=4
error =0.2/sqrt(4)=0.1
this error at either end so C
B wigth it can lift is proportional to X^"
wieght of ant is proportional to volum=X^3
X^2/X^3=1/X
ok thankyou! i understand the second answer, but for the first one, the answer given is B
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one more
A neutron is in head-on elastic collision with the nucleas of a stationary nitrogen.the mass of a nitrogen nucleas is 14 times that of the neutron.the neutron's velocity after collision is
A. less in magnitude than its initial velocity
B. less in magnitude than the final velocity of nitrogen atom
C. equal to initial velocity but in opposite direction
D. greater in magnitude then its initial velocity
please tell asap
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Is potential energy proportional to the bond flexibility in solids?...
shouldnt it be other way around?