IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => IGCSE/ GCSE => Sciences => Topic started by: robot_avenger on June 11, 2009, 06:14:42 am
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Hey guys it's been 24 hours since the ppr 1 physics...How'd we all do?
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tricky .. but alright
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if u widen the barometer tube, will the reding change?
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ya i guess .. i did the lower one done remember if its B or C .. cause atmospheric pressure doesnt change only the baro is wider so it changes
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can we pls use only one thread?/ :-\ :-\
the thukon one,, its more developed anyway ;D ;D ;D
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
:D :D thxxx...wat did u do for the echo the guy standing on the cliff??
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Yes, the reading is at the same height. (:
The paper was really tricky man :-[
And erm, are both the circuit breaker and the fuse in the live wire?
And what was the answer to that fire question? :-\
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
yup, i got the same answers as you :D
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
yup, i got the same answers as you :D
yup its all correct ;D
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
yup, i got the same answers as you :D
yup its all correct ;D
I agree with you 10000000% :)...Nice Job ;D
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Meee ..
For the barometer tube , First i chose B .. then rubbed it and chose C : (
For the echo , i chosed XW(im not sure about the letters) .. but its the shortest wall under the source of sound
For the Fuse .. The circiut breaker in the live wire ( at X ) .. and the fuse at y ..
For the cooper .. me too .. i chosed the other end of the wood
indeed , it was tricky
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wht was d ans to d fuse q tht 0.25a n al tht i dnt remember d q exactly n ya also d ruler 1 nearest mm i chose as 0.764
i feel barometer is b bcz cross section area doesnt affect d pressure
d fuse n live wire thingy was x n x i guess mostly correct
n ya wht was tht magnet n tht p q
i wrote c p=south n q=north n ya ne more doubts plz put up asap
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
for the echo thing im 100% sure it was zy because it was a repeated question i saw the answer in the marking scheme
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
for the echo thing im 100% sure it was zy because it was a repeated question i saw the answer in the marking scheme
yeah it was a repeated q d ans was c thts zy
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
for the echo thing im 100% sure it was zy because it was a repeated question i saw the answer in the marking scheme
Yes it was repeated actually :P , I've done 16 past papers 2 days before the exam lool. Well, I guess my doubts are done... however I just wanted to make sure of a few other things.
First question... was the answer 50m/s?
Third.... 0.764m ?
And the average power... was it the one where the person runs up the slide thing ?
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the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono????
Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change
100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
for the echo thing im 100% sure it was zy because it was a repeated question i saw the answer in the marking scheme
Yes it was repeated actually :P , I've done 16 past papers 2 days before the exam lool. Well, I guess my doubts are done... however I just wanted to make sure of a few other things.
First question... was the answer 50m/s?
Third.... 0.764m ?
And the average power... was it the one where the person runs up the slide thing ?
its al correct i m sure abt these atleast
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wht was d ans to d fuse q tht 0.25a n al tht i dnt remember d q exactly n ya also d ruler 1 nearest mm i chose as 0.764
i feel barometer is b bcz cross section area doesnt affect d pressure
d fuse n live wire thingy was x n x i guess mostly correct
n ya wht was tht magnet n tht p q
i wrote c p=south n q=north n ya ne more doubts plz put up asap
i dont remember the fuse...the barometer is correct..its all correct im not sure about the first one though..wat was the magnetic effect *the compass*??????direction???
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waT iS the answer for the energy thingy....hyrolectric...nuclear?? :o
nD the one for the waves from deep to shaLLow wHat haPPenS?? :-X ???
number 39 ....do we substract 4 or 2 from 138??
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Alright then :D, thanks a lot guys. Now I can go on with my chemistry! Good luck for those who are doing Chemistry tomorrow :)!
And I hope that we have all done well on this paper, and I do agree that it was really tricky :)
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waT iS the answer for the energy thingy....hyrolectric...nuclear?? :o
nD the one for the waves from deep to shaLLow wHat haPPenS?? :-X ???
number 39 ....do we substract 4 or 2 from 138??
I wrote hydroelectric;
For waves.... I think I chose C because the speed changes and so does the direction;
138>2+136 ... um so the answer was 136.. I guess?
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wat abt dat barometer one????? whch postition will t get? n secondly wat abt dat smoke ques???
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waT iS the answer for the energy thingy....hyrolectric...nuclear?? :o
nD the one for the waves from deep to shaLLow wHat haPPenS?? :-X ???
number 39 ....do we substract 4 or 2 from 138??
it was 136 u subtract 2 n the energy thingy was hydroelectric because the energy produced in a nuclear power station is used to heat water to produce steam
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wat abt dat barometer one????? whch postition will t get? n secondly wat abt dat smoke ques???
Barometer, the height will be the same.. as for the smoke question it's because it's less dense than air.
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wat abt dat barometer one????? whch postition will t get? n secondly wat abt dat smoke ques???
barometer was same height n smoke was tht less denser air rises up
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waT iS the answer for the energy thingy....hyrolectric...nuclear?? :o
nD the one for the waves from deep to shaLLow wHat haPPenS?? :-X ???
number 39 ....do we substract 4 or 2 from 138??
I wrote hydroelectric;
For waves.... I think I chose C because the speed changes and so does the direction;
138>2+136 ... um so the answer was 136.. I guess?
they asked d nutrons so y subtract only protons change nt nutrons
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wasnt the 1st answer 60m/s ?
and the echo wasnt it ... PV.. the side tht the girl was standing on ..?
and the one about the fuse ... I wrote 10A ...is it correct ?
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WOOOOOOOHHHHHHOOOOOO thanks guyz. by da way wat do u guyz thnk will Chem be as easy as it was chem n phy..
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waT iS the answer for the energy thingy....hyrolectric...nuclear?? :o
nD the one for the waves from deep to shaLLow wHat haPPenS?? :-X ???
number 39 ....do we substract 4 or 2 from 138??
I wrote hydroelectric;
For waves.... I think I chose C because the speed changes and so does the direction;
138>2+136 ... um so the answer was 136.. I guess?
they asked d nutrons so y subtract only protons change nt nutrons
the nucleon number ius 4 which is the sum of protons n neutrons so to find the total no.of neutrons u have to subtract the mass number frm the atomic nuber (4-2) so only two neutrons are lost which makes it 136
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wasnt the 1st answer 60m/s ?
and the echo wasnt it ... PV.. the side tht the girl was standing on ..?
and the one about the fuse ... I wrote 10A ...is it correct ?
For the first answer I used the formula average speed=distance/time ... I think you just added the minimum and maximum speed and divided by 2.. which is most likely wrong. They just asked the average to confuse us.
I'm not sure about your answer with the fuse.. I mean most of us here chose 1A.
The echo....... um it was ZY.. because the sound will hit that wall since it's closer and then the sound waves are reflected towards the girl.
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wat abt dat barometer one????? whch postition will t get? n secondly wat abt dat smoke ques???
Barometer, the height will be the same.. as for the smoke question it's because it's less dense than air.
Thanks....
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wasnt the 1st answer 60m/s ?
and the echo wasnt it ... PV.. the side tht the girl was standing on ..?
and the one about the fuse ... I wrote 10A ...is it correct ?
which one was 60m/s
n the echo was ZY n the fuse cannot be 10A
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ya wat ws da ans of first one?? n 5555 or whoevr u r chem hasnt hapend yet. i thnk u vr tryin 2 say biology.... but phy ws tricky...
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wasnt the 1st answer 60m/s ?
and the echo wasnt it ... PV.. the side tht the girl was standing on ..?
and the one about the fuse ... I wrote 10A ...is it correct ?
its was 50km/h.....avg s=total dist./total time
i dont think so 10A....i chose 1A :D
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Yes, indeed.
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ya it ws 50 studnts thought 2 take mean. but dat ws wrong.....
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was tht metre rule tht last que on da first page was it 0.761m
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was tht metre rule tht last que on da first page was it 0.761m
Yes it was .
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but i chose D. wat ws D b.d.w?
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but i chose D. wat ws D b.d.w?
d i think was 0.76142 im not sure
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Hey guys, for the pressure exerted on the base of the containers..... I think I chose A... which was the liquid with higher density and small surface area. Any thoughts?
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yea even i wrote A because water was more denser since the wolumes were equal for both water will definately have a greater mass n less surface area means more pressure
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i chose 0.716... D... cuz if u cnvrt it cums 0.7167.2
0.2 gvs nearest 2 mm
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i chose 0.716... D... cuz if u cnvrt it cums 0.7167.2
0.2 gvs nearest 2 mm
dude 0.716 was B
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wt do u thnk da threshold fr paper 1 phy wud b ?? :-\
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wt do u thnk da threshold fr paper 1 phy wud b ?? :-\
lower because most of us did silly mistakes..
;D
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i chose 0.716... D... cuz if u cnvrt it cums 0.7167.2
0.2 gvs nearest 2 mm
dude 0.716 was B
xplain
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i chose 0.716... D... cuz if u cnvrt it cums 0.7167.2
0.2 gvs nearest 2 mm
dude 0.716 was B
xplain
luk m to cm 100 ok den cm to mm 10 tht makes it 1000
ok
so if it was 0.760.8 n dey r askin u nearest mm tht wuld make it 0.761
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lool wasn't 0.761 C?
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lool wasn't 0.761 C?
ppl i dont remeba whether it was B,C or D the only thing i noe is tht it was 0.761
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guys they said nearest mm
so da correct ans is:0.761 m
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lool wasn't 0.761 C?
ppl i dont remeba whether it was B,C or D the only thing i noe is tht it was 0.761
Yeah , me neither. I come out of an exam brain washed. Good thing i remembered a few of my doubts, but it's all good. I guess that me and a lot of people have done well ;). So congratulations in advance, now let's get up and go study chemistry :D
God luck everyone, you guys have been very helpful.
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okyzzz
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I dont think you can walk out of an exam and add up the marks you have lost. I made a habit of it and always got a grade higher than I had calculated. I dont think I ever got below 90%
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I dont think you can walk out of an exam and add up the marks you have lost. I made a habit of it and always got a grade higher than I had calculated. I dont think I ever got below 90%
not every1s a genius u shuld be thankful to god tht u r smart
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Guys logic!! if u use a barometer with a very very big cross-sectional area...ur telling me the height will be the same?? well i put c
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I dont think you can walk out of an exam and add up the marks you have lost. I made a habit of it and always got a grade higher than I had calculated. I dont think I ever got below 90%
r u a student???
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Guys logic!! if u use a barometer with a very very big cross-sectional area...ur telling me the height will be the same?? well i put c
no even i did the same in ma monthly but ma teacher said it was wrong
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even i put C because i lrnt that wider tubes means more expansion remember in thermometer?
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guys....to no offence.one thing is evident that u didnt read the book
pressure does not depend on the area or diameter of the tube...
if it would be 50 times wider it would still be da same
the ans was b
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guys....to no offence.one thing is evident that u didnt read the book
pressure does not depend on the area or diameter of the tube...
if it would be 50 times wider it would still be da same
the ans was b
yup u r absolutely ryt n i noe this because i read the book
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I dont think you can walk out of an exam and add up the marks you have lost. I made a habit of it and always got a grade higher than I had calculated. I dont think I ever got below 90%
r u a student???
lol....no mr bombastic....astar isnt a student :D
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yeah but remember the capillary action?
Or? Does it really affect?
am not sure..
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I dont think you can walk out of an exam and add up the marks you have lost. I made a habit of it and always got a grade higher than I had calculated. I dont think I ever got below 90%
r u a student???
lol....no mr bombastic....astar isnt a student :D
phew....i knew it.... :)
so hes a kind of helper here.....
god bless ya.astar......
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i don't think the echo was zy it was xy (from the point of explosion to the nearest wall)
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omar....it came from the past paper.....it was repeated but ..agree with u!
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No man. It was ZY. because it reflects on ZY & to the person
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thanks man now i got it i must have read the question wrong
hope the grade boundary is 33 or 31
by the way i really need to know what was the answer fro the power question and the magnetic field question
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thanks man now i got it i must have read the question wrong
hope the grade boundary is 33 or 31
by the way i really need to know what was the answer fro the power question and the magnetic field question
Yea bro...hopefully
Which power question? the one with the beach? =S
& which magnetic field qtion?
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thanks man now i got it i must have read the question wrong
hope the grade boundary is 33 or 31
by the way i really need to know what was the answer fro the power question and the magnetic field question
Yea bro...hopefully
Which power question? the one with the beach? =S
& which magnetic field qtion?
the one with the least time 5s......i think so
and for magnetic qtion.....idk
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I am a private tutor
www.astarmathsandphysics.com
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the one that saied that said a wire was placed perpendicular to the page, and the current was outside of the page
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the power question was the person running up the slipway or whatever it was, directly up to the top, because power is calculated by the formula energy over time or in this case, work done over time, and this means that the smallest possible time would give the biggest power, so i chose the person who went straight up the slope.
the magnetic field question if it was question 17 with the magnet and 4 compasses, was c which was the compass on the right of the magnet as it was the only compass that actually lay on the magnetic field.
cheers =) and im pretty sure boundary will be 35 or less, it was a pretty tough paper...
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ya i guess .. i did the lower one done remember if its B or C .. cause atmospheric pressure doesnt change only the baro is wider so it changes
It's C am positivly sure
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the power question was the person running up the slipway or whatever it was, directly up to the top, because power is calculated by the formula energy over time or in this case, work done over time, and this means that the smallest possible time would give the biggest power, so i chose the person who went straight up the slope.
the magnetic field question if it was question 17 with the magnet and 4 compasses, was c which was the compass on the right of the magnet as it was the only compass that actually lay on the magnetic field.
cheers =) and im pretty sure boundary will be 35 or less, it was a pretty tough paper...
Oh yea....the smallest time = More Power....lost that 1
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@mr.bombastic: lol....hez a very helpful person n a gr8 person n frnd n one of da best tutors......yes very glad hez here 4 us :)
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100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
[/quote]
that's correct, n fuse and circuit breaker both lies in the live wire,
and dude is it really ZY cuz I want the true answer
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oh man i pray the threshold ain't 35 i did exactly seven mistakes hope its 33
the strange thing is i did perfectly well in paper 3 and 6
i always screw up in paper 1
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oh man i pray the threshold ain't 35 i did exactly seven mistakes hope its 33
the strange thing is i did perfectly well in paper 3 and 6
i always screw up in paper 1
Yup, i got bout 5 wrong now....
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100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
that's correct, n fuse and circuit breaker both lies in the live wire,
and dude is it really ZY cuz I want the true answer
[/quote]
Fuse was 1A as it was the fuse directly above tha amount of current required for appliance (bulb) to work to its maximum potential.
Fuse and circuit breaker i put fuse on live wire but circuit breaker in the circuit so in the other position, not sure whether its right though.
Echo was ZY :P it was pastpaper qn and i got it wrong so i knew the right answer in exam
i got the copper wood i got same answer which was A, the wood end of the tube thing
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For the one where they were running I assumed the people who were running across the beach and up the ladder ran a further distance than the people running directly up the slope so Work Done = Force x Distance
That's why I chose the person who ran across the beach and up the ladder while taking less time therefore more power.
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it was the person who runs up the slip way with the least tym if u wanna chk try this out take any values for the beach suppose 6 n for the height of the ladder suppose 2 den calculate the slipway's length using pythagoras den use the formula power= energy/time since they already mentioned their weights are same that means the forces are equal take a value for the force calculate workdone= energy
u will get ur answers
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100% Correct.....
Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?
For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct ???
The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.
For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?
that's correct, n fuse and circuit breaker both lies in the live wire,
and dude is it really ZY cuz I want the true answer
[/quote]
Hello, yes i'm pretty sure that it was the small distant wall which was ZY I think, I did that in a past paper before the exam by a day. The question was still fresh in my head.
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it was ZY IM SURE
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wat abt dat barometer one????? whch postition will t get? n secondly wat abt dat smoke ques???
Barometer, the height will be the same.. as for the smoke question it's because it's less dense than air.
Thanks....
Mmm, for the smoke question, I don't think its because air is always less dense at high temperatures ....there is nolink b/w temperature and density....
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wat abt dat barometer one????? whch postition will t get? n secondly wat abt dat smoke ques???
Barometer, the height will be the same.. as for the smoke question it's because it's less dense than air.
Thanks....
Mmm, for the smoke question, I don't think its because air is always less dense at high temperatures ....there is nolink b/w temperature and density....
Do you understand why the freezer in a refrigerator is placed at the top?
Because cold particles become more dense than air, thus they move downwards... so that's how it cools the 2nd fridge chamber under it and vice versa.
Bottom line, smoke has higher temperature.... becomes less dense than air.. and moves upward..
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And plus!! Even if you don't understand that concept..... the other selections did not make sense at all....
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for the power one i wrote 5 sec one cus less time greatest poswer
n the barometer it was B so obvious
n the eco i wrote the walla which was on the right side
cuz it was the shortest distance:)
am i vorrect?
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for the power one i wrote 5 sec one cus less time greatest poswer
n the barometer it was B so obvious
n the eco i wrote the walla which was on the right side
cuz it was the shortest distance:)
am i vorrect?
Yea, I wrote the same answers! :D
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but i screwed up 2 question which i was so pissed off
i knew the ans..but i over rules my insticnt!!!
the longitudnal one...
i said 14n2
but i KNEW the ans was 2n4
bte the pressure for pistion
both ould dec right
Pressure 100% dec what about density
-
but i screwed up 2 question which i was so pissed off
i knew the ans..but i over rules my insticnt!!!
the longitudnal one...
i said 14n2
but i KNEW the ans was 2n4
bte the pressure for pistion
both ould dec right
Pressure 100% dec what about density
Few of my friends also thought 1, i was sure that it was 2 and 4 though.
Yup, pressure and density both decrease. It is mainly due to the increase in volume.
-
but i screwed up 2 question which i was so pissed off
i knew the ans..but i over rules my insticnt!!!
the longitudnal one...
i said 14n2
but i KNEW the ans was 2n4
bte the pressure for pistion
both ould dec right
Pressure 100% dec what about density
Few of my friends also thought 1, i was sure that it was 2 and 4 though.
Yup, pressure and density both decrease. It is mainly due to the increase in volume.
it is 2 n 4
cuz waves in water r transversal :(
n thee shallow to deep was D right?
-
for the power one i wrote 5 sec one cus less time greatest poswer
n the barometer it was B so obvious
n the eco i wrote the walla which was on the right side
cuz it was the shortest distance:)
am i vorrect?
yup
-
but i screwed up 2 question which i was so pissed off
i knew the ans..but i over rules my insticnt!!!
the longitudnal one...
i said 14n2
but i KNEW the ans was 2n4
bte the pressure for pistion
both ould dec right
Pressure 100% dec what about density
Few of my friends also thought 1, i was sure that it was 2 and 4 though.
Yup, pressure and density both decrease. It is mainly due to the increase in volume.
it is 2 n 4
cuz waves in water r transversal :(
n thee shallow to deep was D right?
The shallow one, I got C. Because when it goes into the shallow area, it moves slower, thus wavelength decreases, and since it has entered the area at an angle, it will refract (towards the normal in this case). D, although showed a decrease in wavelength, but the there was no refraction..so i think C is wrong..Sorry about that :(
Well, good luck for chemistry, if you take chemistry :)
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yaa i do take chesm:)
good luck to u too
anyways i hope i got it correct:)
-
yeah it was c
the rays in d were not bending even tho their wavelength changed!!
-
yeah it was c
the rays in d were not bending even tho their wavelength changed!!
Oo baga!!! i got some qs wrong
-
yaa i do take chesm:)
good luck to u too
anyways i hope i got it correct:)
Good luck to you too :)
-
i got C for tht as well
-
yeah it was c
the rays in d were not bending even tho their wavelength changed!!
Oo baga!!! i got some qs wrong
no problemlemo.....
we can compromise upto 9-10 marks!!!
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yeah it was c
the rays in d were not bending even tho their wavelength changed!!
Oo baga!!! i got some qs wrong
no problemlemo.....
we can compromise upto 9-10 marks!!!
hmm ,..
how was ur exam ???
did u got any wrong??
-
i dont remember wat i wrote ???
wat was the answer for the wire into the page and the compasses ??
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Meee ..
For the barometer tube , First i chose B .. then rubbed it and chose C : (this question is repeatd 'n answer is C
For the echo , i chosed XW(im not sure about the letters) .. but its the shortest wall under the source of sound also repeated answer is da wall at the end..i guess its called smeting and Z
For the Fuse .. The circiut breaker in the live wire ( at X ) .. and the fuse at y ..always in live thus XX
For the cooper .. me too .. i chosed the other end of the woodrepeated 'n yes!
indeed , it was tricky
-
Y is barometer C?
-
yeah it was c
the rays in d were not bending even tho their wavelength changed!!
Oo baga!!! i got some qs wrong
no problemlemo.....
we can compromise upto 9-10 marks!!!
hmm ,..
how was ur exam ???
did u got any wrong??
no... ;D
so far soo good...
it went a charm.......
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Y is barometer C?
it was b!!!!!
-
Y is barometer C?
it was b!!!!!
yaa i am 100% sure but sweetsh angel is saying it C?
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bdw first question ans. was 50m/s since they gave us distance 'n time...average was 2 confuse only
'n i did revise da ppr wid ma teacher so am pretty sure
the barometer is c...sme pressure ya buh since its wider the mercury takes less height!!its sme application as thermometers tube!! (actually i tink its the thermometer theory they were actually testin' wid this question!)
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I have a couple of Questions about the paper..
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure)
3- Is it true that the longitudinal waves were 1,2 and 4?
4- What was the barometer answer? (Same level or the lower one?)
5- When the volume decreased in the syringe did both pressure and density decrease?
My answers were:
1- The 8 sec Choice
2- The Air Density Choice
3- The 2 and 3 ( I know I am wrong)
4- The Same Level Choice
5- Both Decreased
-
I have a couple of Questions about the paper..
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure)
3- Is it true that the longitudinal waves were 1,2 and 4?
4- What was the barometer answer? (Same level or the lower one?)
5- When the volume decreased in the syringe did both pressure and density decrease?
My answers were:
1- The 8 sec Choice
2- The Air Density Choice
3- The 2 and 3 ( I know I am wrong)
4- The Same Level Choice
5- Both Decreased
1)5 sce of the most power
2 i marked convection
3 the correct one was 2 n 4
4 the smae level B
5 bth dec
-
these were ma answers
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)since time is inversly propotional 2 power...least time had greatest power
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure)
3- Is it true that the longitudinal waves were 1,2 and 4?nope..just da drums (2) and (4)
4- What was the barometer answer? (Same level or the lower one?)i wrote lower
5- When the volume decreased in the syringe did both pressure and density decrease?since density is inversly propotional 2 volume...it decreased so did pressure!!
-
I have a couple of Questions about the paper..
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure)
3- Is it true that the longitudinal waves were 1,2 and 4?
4- What was the barometer answer? (Same level or the lower one?)
5- When the volume decreased in the syringe did both pressure and density decrease?
My answers were:
1- The 8 sec Choice
2- The Air Density Choice
3- The 2 and 3 ( I know I am wrong)
4- The Same Level Choice
5- Both Decreased
1)5 sce of the most power
2 i marked convection
3 the correct one was 2 n 4
4 the smae level B
5 bth dec
Are you sure about 1 and 2?
-
about 1 ya .. but 2 i dont no ???
-
I have a couple of Questions about the paper..
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure)
3- Is it true that the longitudinal waves were 1,2 and 4?
4- What was the barometer answer? (Same level or the lower one?)
5- When the volume decreased in the syringe did both pressure and density decrease?
My answers were:
1- The 8 sec Choice
2- The Air Density Choice
3- The 2 and 3 ( I know I am wrong)
4- The Same Level Choice
5- Both Decreased
1)5 sce of the most power
2 i marked convection
3 the correct one was 2 n 4
4 the smae level B
5 bth dec
Are you sure about 1 and 2?
2) i am not sure yan3 the air leess dence rissed up....
-
rises**
-
these were ma answers
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)since time is inversly propotional 2 power...least time had greatest power
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure)
3- Is it true that the longitudinal waves were 1,2 and 4?nope..just da drums (2) and (4)
4- What was the barometer answer? (Same level or the lower one?)i wrote lower
5- When the volume decreased in the syringe did both pressure and density decrease?since density is inversly propotional 2 volume...it decreased so did pressure!!
i had sme answers ;D/
barometer question is repeated but i am studying chem at the moment so i cant look which year....something in the 1995 or before :-\
-
hey wats the answer for the wire goin into the page ... wat was the compass readings ??
-
these were ma answers
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)since time is inversly propotional 2 power...least time had greatest power But didn't the guy who ran and climbed do more work? Power = Work/Time???
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure) Why?
3- Is it true that the longitudinal waves were 1,2 and 4?nope..just da drums (2) and (4)
4- What was the barometer answer? (Same level or the lower one?)i wrote lower What did ur teacher say?
5- When the volume decreased in the syringe did both pressure and density decrease?since density is inversly propotional 2 volume...it decreased so did pressure!!
-
that means i have the Power one and waves one wrong 100%
and 2 more questions may be wrong (Smoke and Barometer)
So say i have all 4 wrong and maybe 1 more which i am not aware of, do you think the curve would be higher than 35?? :'(
-
Umm, for those who still don't believe that the barometer answer is B, please do check out Physics paper TWO for november 2008, question 6!
-
hey wats the answer for the wire goin into the page ... wat was the compass readings ??
it was see..da one pointing da north..
-
hey wats the answer for the wire goin into the page ... wat was the compass readings ??
I cant remember the choises but you had to use Maxwell's right hand screw law
Left
Down . Up
Right
-
1- What was the answer for the most power question? (run up in 5sec or run forward and climb up in 8sec?)since time is inversly propotional 2 power...least time had greatest power But didn't the guy who ran and climbed do more work? Power = Work/Time???how do u knw work..distance was same and force remains unknown to us, only known variablw which we can judge frm is time!
2- What was the reason for the smoke above the fire? (Faster diffusion, Air Density, or Air Pressure) Why?since at faster diffusion rate the smoke particles diffuse from high concentration(near the fire) to low concentration (above the fire) and this is just a theory am not sure
3- Is it true that the longitudinal waves were 1,2 and 4?nope..just da drums (2) and (4)
4- What was the barometer answer? (Same level or the lower one?)i wrote lower What did ur teacher say?he said it was C...and gave the same xplanation i gave abt the thermometer hypothesis...am not that smart to come up with it on my own ;D durin' da xam ma answer choice of C was pure luk ;D
5- When the volume decreased in the syringe did both pressure and density decrease?since density is inversly propotional 2 volume...it decreased so did pressure!!
[/quote]
[/quote]
-
that baro meter q came in theory in paper 3 1989...
our teacher did it in class............
i feel like scanning that right now.....
and show it to ya... >:(
-
and guys i knw this sounds silly after my argument above but discussin' the paper and findin' out ur mistakes doesn't mke u feel betta
the highest threshold for p.pr1 was 35...so probably we r all A isa
Take care
-
that baro meter q came in theory in paper 3 1989...
our teacher did it in class............
i feel like scanning that right now.....
and show it to ya... >:(
1989????????? Who the hell studies that far back!!! :-\
Any ways what was ur teachers answer? Same level or lower?
-
that baro meter q came in theory in paper 3 1989...
our teacher did it in class............
i feel like scanning that right now.....
and show it to ya... >:(
hahah it is obvious its B!!!!! y would it B higher or lower..
they r just confusing
-
Umm, for those who still don't believe that the barometer answer is B, please do check out Physics paper TWO for november 2008, question 6!
November 08 :S ???
its an organic chemistry chapter .... DUDE PAPER 2 IS FLIPPING EASY !!!!!!!!!!!!!
-
Umm, for those who still don't believe that the barometer answer is B, please do check out Physics paper TWO for november 2008, question 6!
November 08 :S ???
its an organic chemistry chapter .... DUDE PAPER 2 IS FLIPPING EASY !!!!!!!!!!!!!
Just suggested the paper, because it has a question, really similar to the barometer one, where they ask you to fill in the level when the tube is wider.
-
and guys i knw this sounds silly after my argument above but discussin' the paper and findin' out ur mistakes doesn't mke u feel betta
the highest threshold for p.pr1 was 35...so probably we r all A isa
Take care
Inshallah 35 (or lower), in that case we are all As
By the way; how is an A* obtained?
-
that baro meter q came in theory in paper 3 1989...
our teacher did it in class............
i feel like scanning that right now.....
and show it to ya... >:(
1989????????? Who the hell studies that far back!!! :-\
Any ways what was ur teachers answer? Same level or lower?
same level.......b
here is MY EXPLANATION......
barometer is used to measur da pressure...and since IT measures using mercury which is a liquid...
u will use the formula p=h x d x g......agreed.......
now pressure in liquids DOES NOT DEPEND ON AREA OR DIAMETER...
IT depend upon HEIGHT and DENSITY.
so wat ever the diameter the pressure will be the same.....
this is the best explanation i can give...
hope u understood well... :)
-
that baro meter q came in theory in paper 3 1989...
our teacher did it in class............
i feel like scanning that right now.....
and show it to ya... >:(
1989????????? Who the hell studies that far back!!! :-\
Any ways what was ur teachers answer? Same level or lower?
same level.......b
here is MY EXPLANATION......
barometer is used to measur da pressure...and since IT measures using mercury which is a liquid...
u will use the formula p=h x d x g......agreed.......
now pressure in liquids DOES NOT DEPEND ON AREA OR DIAMETER...
IT depend upon HEIGHT and DENSITY.
so wat ever the diameter the pressure will be the same.....
this is the best explanation i can give...
hope u understood well... :)
Bonabstic... do u have ans from 200-2003 for chem??
-
that baro meter q came in theory in paper 3 1989...
our teacher did it in class............
i feel like scanning that right now.....
and show it to ya... >:(
1989????????? Who the hell studies that far back!!! :-\
Any ways what was ur teachers answer? Same level or lower?
same level.......b
here is MY EXPLANATION......
barometer is used to measur da pressure...and since IT measures using mercury which is a liquid...
u will use the formula p=h x d x g......agreed.......
now pressure in liquids DOES NOT DEPEND ON AREA OR DIAMETER...
IT depend upon HEIGHT and DENSITY.
so wat ever the diameter the pressure will be the same.....
this is the best explanation i can give...
hope u understood well... :)
logical....ok so i have 4-5 wrong....no problem, still A
Now i should go prepare for Chemistry tommorow
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
Is this chemistry or physics, 2000-2003, that you want?
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
Is this chemistry or physics, 2000-2003, that you want?
chemsitry i dont need the paper i need the mark scheme:)
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
scannig would take time!!! :-\ :-\
cuz my printer is off...
but wait.....let me see wat i can doo
-
in phy ppr1 was a rule actually drawn in da second que????????
in mi ppr der was no rule ::)
and is mass of heavy objects more dan mass of lighter objects???????????
-
For all those who say the fuse was 1A take a look a this....this is the same question with different numbers but the answer is still B....convinced now?
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
Is this chemistry or physics, 2000-2003, that you want?
chemsitry i dont need the paper i need the mark scheme:)
i know...i am scanning....
hold on..
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
Is this chemistry or physics, 2000-2003, that you want?
chemsitry i dont need the paper i need the mark scheme:)
I have the mark scheme for chemistry paper 1, june and november 2002! Should i post them?
-
i hav in a hard copy manah......not in a soft copy...
if u want i can tell da ans...
can u scan them for me or some thing??
ya that would be really nice of u
or perhaps ill do onething ill solve those yrs n then cofirm u the ans???
Is this chemistry or physics, 2000-2003, that you want?
chemsitry i dont need the paper i need the mark scheme:)
i know...i am scanning....
hold on..
thankx!!!:)
@i-insane ya if u can it will reduce Bombastci load ;)
-
June 2002
1 B 21 D
2 C 22 A
3 B 23 D
4 B 24 B
5 A 25 C
6 D 26 B
7 B 27 C
8 C 28 A
9 D 29 C
10 B 30 B
11 A 31 C
12 B 32 B
13 D 33 C
14 D 34 A
15 A 35 B
16 C 36 D
17 A 37 A
18 C 38 C
19 B 39 D
20 A 40 C
Nov 2002
1 C 21 D
2 B 22 D
3 C 23 B
4 D 24 A
5 A 25 A
6 C 26 D
7 B 27 D
8 A 28 B
9 B 29 C
10 B 30 D
11 B 31 B
12 A 32 D
13 A 33 A
14 D 34 A
15 D 35 A
16 B 36 C
17 A 37 A
18 B 38 B
19 C 39 B
20 D 40 C
-
June 2002
1 B 21 D
2 C 22 A
3 B 23 D
4 B 24 B
5 A 25 C
6 D 26 B
7 B 27 C
8 C 28 A
9 D 29 C
10 B 30 B
11 A 31 C
12 B 32 B
13 D 33 C
14 D 34 A
15 A 35 B
16 C 36 D
17 A 37 A
18 C 38 C
19 B 39 D
20 A 40 C
Nov 2002
1 C 21 D
2 B 22 D
3 C 23 B
4 D 24 A
5 A 25 A
6 C 26 D
7 B 27 D
8 A 28 B
9 B 29 C
10 B 30 D
11 B 31 B
12 A 32 D
13 A 33 A
14 D 34 A
15 D 35 A
16 B 36 C
17 A 37 A
18 B 38 B
19 C 39 B
20 D 40 C
thanx1!!!
-
was tht metre rule tht last que on da first page was it 0.761m
was there a metre rule drawn????????????
-
i wrote 0.7
-
i wrote 0.7
me toooooooo
-
my scanner aint workin!!!
-
my scanner aint workin!!!
fine ill do the paper then ask u the ans???
u're online right?
-
in phy ppr1 was a rule actually drawn in da second que????????
in mi ppr der was no rule ::)
and is mass of heavy objects more dan mass of lighter objects???????????
plzzzzzzzz reply
im toooooooooooo tensed :'(
-
my scanner aint workin!!!
fine ill do the paper then ask u the ans???
u're online right?
yeah!!!!
-
in phy ppr1 was a rule actually drawn in da second que????????
in mi ppr der was no rule ::)
and is mass of heavy objects more dan mass of lighter objects???????????
plzzzzzzzz reply
im toooooooooooo tensed :'(
for the weight i got C i guess it was venus i substituted the values n i got that!!!
about meter rule i did 0.7 cuz they asked rounding(something like that)
-
metre rulewas 0.761 m soo sure!!!
-
guys....to no offence.one thing is evident that u didnt read the book
pressure does not depend on the area or diameter of the tube...
if it would be 50 times wider it would still be da same
the ans was b
dude!!!!
above the liquid is vacuum, its not effected by pressure.
so height will be lower not the same
-
guys....to no offence.one thing is evident that u didnt read the book
pressure does not depend on the area or diameter of the tube...
if it would be 50 times wider it would still be da same
the ans was b
same level.......b
here is MY EXPLANATION......
barometer is used to measur da pressure...and since IT measures using mercury which is a liquid...
u will use the formula p=h x d x g......agreed.......
now pressure in liquids DOES NOT DEPEND ON AREA OR DIAMETER...
IT depend upon HEIGHT and DENSITY.
so wat ever the diameter the pressure will be the same.....
this is the best explanation i can give...
hope u understood well...
-
i put 0.7162 for the nearest mm Q. :O:O
there goes one mark...
-
i just want 2 no if der was a rule drawn or nut???????
and 4 da echo que. i think its da wall on wich girl was standin (PV)
-
i just want 2 no if der was a rule drawn or nut???????
and 4 da echo que. i think its da wall on wich girl was standin (PV)
did u give da exam...
there was no ruler drawn....
and echo came 4rm da wall
-
i just want 2 no if der was a rule drawn or nut???????
and 4 da echo que. i think its da wall on wich girl was standin (PV)
did u give da exam...
there was no ruler drawn....
and echo came 4rm da wall
bobastix ill type the ans on pakistani hea
like after 10 mnts!
-
i just want 2 no if der was a rule drawn or nut???????
and 4 da echo que. i think its da wall on wich girl was standin (PV)
did u give da exam...
there was no ruler drawn....
and echo came 4rm da wall
bobastix ill type the ans on pakistani hea
like after 10 mnts!
ok lets go back to our house thenn....lolzz
-
guys....to no offence.one thing is evident that u didnt read the book
pressure does not depend on the area or diameter of the tube...
if it would be 50 times wider it would still be da same
the ans was b
dude!!!!
above the liquid is vacuum, its not effected by pressure.
so height will be lower not the same
pressure is the same so the height is always the same
-
The barometer question. The answer is B, it is the same height. Stubborn people can google it.
The echo question. The correct wall is the one ALL THE WAY at the right near the top.
The fuse and circuit breaker. Both are on the live wire.
The fuse. Its 1A.
The meter rule is the one with 3 decimal places. 0.761m.
AND im pretty sure the fire one is C, the air is less dense at higher temperatures.
-
The person with the most power is the person with the least time, namely, the person who ran up the slope.
The energy process that does NOT use heat energy to heat water is hydroelectric.
What else?
-
heavier objects have more mass??????
-
Hi, guys what was the last one's answer.Was it 16(C).
-
@ notty_me. Could you tell me the question? I kinda forgot it.
@sundars. The number of nucleons is the same as the nucleon number. So what was the nucleon (mass) number? It was 16 rite? So the answer is 16.
-
Hey manah....du u want da answers 4rm 2000-2003 4 chem.....if u du...temme :)
-
What about the 39th one.
-
What about the 39th one.
That was 136..because an alpha particle only has 2 neutrons.
-
Yes,thanks.My friends said it was 134.
-
@ notty_me. Could you tell me the question? I kinda forgot it.
@sundars. The number of nucleons is the same as the nucleon number. So what was the nucleon (mass) number? It was 16 rite? So the answer is 16.
wich statement is correct for objects on earth?????
-
Yes,thanks.My friends said it was 134.
that is obvious...most thought its the mass no.
-
look at this ppl
-
For all those who say the fuse was 1A take a look a this....this is the same question with different numbers but the answer is still B....convinced now?
LOOOL! Actually, it's definitely not 1A because the hair drier needs 2A.. so that's why it's B which is a fuse of 3A
However, on our exam... the lamp needed 0.25 to light at maximum brightness... and the wire can carry up to 5A. So it was neither 0.2A, 5A, nor 10A.... because 1A is the most suitable.
-
For all those who say the fuse was 1A take a look a this....this is the same question with different numbers but the answer is still B....convinced now?
LOOOL! Actually, it's definitely not 1A because the hair drier needs 2A.. so that's why it's B which is a fuse of 3A
However, on our exam... the lamp needed 0.25 to light at maximum brightness... and the wire can carry up to 5A. So it was neither 0.2A, 5A, nor 10A.... because 1A is the most suitable.
But didnt they ask for THE OTHER END, that means the fuse is for the wire, so 10A was my answer