Physics, Chemistry and Biology: Post your doubts here!

[always-smile :)]

plzzz help
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s11_qp_61.pdf
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s11_ms_61.pdf
1 c)
i don't understand the question and the mark scheme's answer so plzzzzz help guys

viewing the card from the side will make a difference in marking the point needed
the question is indirect he is asking about how to minimize the possible inaccuracy of finding the point
viewing in right angel minimize this inaccuracy
hope i helped

 

[Manobilly]

Meniscus?

 

[AAnsarii]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_61.pdf
2(b) do v always have 2 draw d line of best fit?
PLEASE reply asap

 

[AAnsarii]

Meniscus?

the curve of the liquid against d container, like mercury curves upwards, n water curves downwards...
u must read d flat surface.

 

[thats_me]

ok u
ok u have mad eit parallel? how will we knw if we have to make parallel or not?
and the wires are slanting in circuit 2? we dont have to draw like tht?

the slanting part i guess it doesnt make a diff whether its straight or slanting it is still in series
just look at circuit 2 if u straighten the line of AB and BC the ammmeter is connected to it and CD is not in series wid it ,it is just connected to C they wat us to connect it to A &C which are at the ends so the only way is parallel

 

[thats_me]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_61.pdf
2(b) do v always have 2 draw d line of best fit?

i think its a curve

 

[AAnsarii]

i think its a curve

jazakillah
when do u noe dat u've 2 draw a best fit line or a curve, coz dey always say "plot" only....

 

[AAnsarii]

np ,
It means that u have to use another connecting wire to connect 'A'and 'D'
the resistors are A-B ,B-C & C-D <-- 3 resistors that i made in the drawing ,then as they say to connect A and D i connected A and D with a connecting wire (lead) in parallel..

hw do v do this thing??

 

[thats_me]

jazakillah
when do u noe dat u've 2 draw a best fit line or a curve, coz dey always say "plot" only....

Well i think u just hav to c the readings n i dentify ,These readings are showing a curve usually the best fit is like around 1 or 2 points are a little to the left or to the right ( 1 or 2 of those little blocks)

 

[wooowooowoo]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_61.pdf
2(b) do v always have 2 draw d line of best fit?
PLEASE reply asap

Even I had the same doubt. It seems that in Physics P6, all graphs are meant to be either a best fit or a straight line graph. You can plot the points and see it yourself for which type of graph it's meant to be.

 

[AAnsarii]

zero error?

 

[AAnsarii]

Even I had the same doubt. It seems that in Physics P6, all graphs are meant to be either a best fit or a straight line graph. You can plot the points and see it yourself for which type of graph it's meant to be.

thats_me said u look at d points plotted
well then evy1, all d best.... v sail in d same boat

 

[wooowooowoo]

thats_me said u look at d points plotted
well then evy1, all d best.... v sail in d same boat

I probably missed that post then. Sorry, you can ignore my message.

 

[thats_me]

hw do v do this thing??

kainat husain Look,
the question states that u need to draw a circuit which is similiar to (ii) using a lead (connecting wire) and u need to use standard symbols to show AB BC & CD but there is 1 more condition they want u to connect resistors A & D together
so using the symbol of resistor we draw AB & BC now the problem is CD in the diagram(ii) CD is connected to C but not to A so in ur diagram u need to connect it to A wen u do it, this is wat u'll get

 

[thats_me]

zero error?

zero error is basically wen the instrument u r measuring with doesnot start frm zero

 

[AAnsarii]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_61.pdf
4(a) what 2 do wid d pins?
d whole qn is wierd, sby plz xplain

 

[Dashexdan]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s10_qp_61.pdf
4(a) what 2 do wid d pins?

marks the crosses on the line GK as it is the reflected ray

 

[fatima360]

experiment to find the critical angle using a glass prism???plxxx tell me!!!!!!!!!!!!!!!!

 

[za Shadow]

It is to avoid parallex error we need to view the line directly in front of the card
Parallax error happens wen the line of eye sight is not perpendicular/vertically above tthe pointer

viewing the card from the side will make a difference in marking the point needed
the question is indirect he is asking about how to minimize the possible inaccuracy of finding the point
viewing in right angel minimize this inaccuracy
hope i helped

thank u both veryyyyyyy much

 

[thats_me]

experiment to find the critical angle using a glass prism???plxxx tell me!!!!!!!!!!!!!!!!

where is it asked :O