Physics Paper 5 tips

[queen of the legend]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_52.pdf

How to do the errors part here ?> errors in log T ?

Soldier313
fb.junks

or anyone ?

for this one ...calculate the error in T values which o.2/10 = 0.02

now get the upper limit of T which is for the first one in the table lg(1.96+0.02)
subtract this from normal lg value ...which is lg1.96

so lg1.98-lg1.96 = 0.004 easy peasy
and so on

 

[Trash Can]

for error in gradient line its normally the gradient of best fit-gradient of worst acceptable...but can it be reverse???i.e, can it be worst acceptable -best fit in any case???

 

[Trash Can]

can anyone plz help me on how to draw the worst fit line in the graph ?

simply,first draw the error bars on all the points of best fit line,then join the highest error of the first point to the lowest error of the last point..worst fit line is ready!!

 

[Trash Can]

As a method of analyzing data,can a table of raw data collected be given???? will it be considered as additional details??? coz there are many questions where the independent and dependent variables are derived or cannot be collected directly from the experiment that is expected to design.. consequently,can a table be given showing headings to collect and process the raw data????? will i be penalized??

 

[rafay malik]

Is it acceptable to write the answer to question one in bullet forms, under the specific headings? ( defining the problem, methods of data collection etc).

 

[gary221]

Is it acceptable to write the answer to question one in bullet forms, under the specific headings? ( defining the problem, methods of data collection etc).

u mean dividing the ans under those categories?
well, that's the way iv been taught...n i think that as long as u cover all the points, its fine..
Hope i helped.
All credit to Nibz

 

[gary221]

As a method of analyzing data,can a table of raw data collected be given???? will it be considered as additional details??? coz there are many questions where the independent and dependent variables are derived or cannot be collected directly from the experiment that is expected to design.. consequently,can a table be given showing headings to collect and process the raw data????? will i be penalized??

i think that falls under the observation category. u can make an observation table to show the recorded and calculated values. i dont think they will penalize u for this.
under additional details u can always show how u were able to fit the given equation to y = mx + c
that is, sometimes u have to take logarithm of the equation for it to match y = mx + c
i dont think the table will be considered as additional detail.

Hope i helped.
All credit to Nibz

 

[gary221]

for error in gradient line its normally the gradient of best fit-gradient of worst acceptable...but can it be reverse???i.e, can it be worst acceptable -best fit in any case???

yes it can.
becoz as it is the error is written with a +/- sign b4 it.
so that makes no diff.
Hope i helped.
All credit to Nibz

 

[Prince77]

what is the diagram for this ! Q1!! AND THE UNCERTAINITIES ! PLS TELL ME HOW TO GET UNCERTAINITIES I GET IT WRONG EVERYTIME PLS! HELP!
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_52.pdf

 

[magnesium]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s12_qp_52.pdf
Q2 d ii) how to find percentage uncertainity????plz help!!!!!
e ii) ??????

 

[rafay malik]

u mean dividing the ans under those categories?
well, that's the way iv been taught...n i think that as long as u cover all the points, its fine..
Hope i helped.
All credit to Nibz

Yea, exactly.
Thanks man

 

[chocolatelover]

Do we include units in paper 5?
As in for the gradient and y intercept?

 

[magnesium]

Do we include units in paper 5?
As in for the gradient and y intercept?

if asked in question only then

 

[magnesium]

is it not acceptable to write answer in bullet form?

thats a better way to answer

 

[magnesium]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_52.pdf

How to do the errors part here ?> errors in log T ?

Soldier313
fb.junks

or anyone ?

{x + delta x/2 } / { x - delta x /2} take log of whole term .........like for first box ... {1.96 + (0.2/1o)/2} / { 1.96- (0.2 / 10)/2} then take log

 

[magnesium]

what is the diagram for this ! Q1!! AND THE UNCERTAINITIES ! PLS TELL ME HOW TO GET UNCERTAINITIES I GET IT WRONG EVERYTIME PLS! HELP!
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_52.pdf

{x + delta x/2 } / { x - delta x /2} take log of whole term .........like for first box ... {1.96 + (0.2/1o)/2} / { 1.96- (0.2 / 10)/2} then take log

 

[fb.junks]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_52.pdf

How to do the errors part here ?> errors in log T ?

Soldier313
fb.junks

or anyone ?

Using values in the top of table.
Error in log(T)=(log(19.6+.2)-log(19.6-.2))x.5

 

[fb.junks]

Is it acceptable to write the answer to question one in bullet forms, under the specific headings? ( defining the problem, methods of data collection etc).

I am not sure but if it was even acceptable.The examiner will mark those points under only that specific heading only so I recommend to write in paragraphs with no headings so each point where ever mentioned is considered.

 

[Trash Can]

i think that falls under the observation category. u can make an observation table to show the recorded and calculated values. i dont think they will penalize u for this.
under additional details u can always show how u were able to fit the given equation to y = mx + c
that is, sometimes u have to take logarithm of the equation for it to match y = mx + c
i dont think the table will be considered as additional detail.

Hope i helped.
All credit to Nibz

"observation" category mean data collection thingy????

 

[chocolatelover]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w10_qp_53.pdf
Q2 e part please