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[8Z]

When calculating the gradient of a line in PAPER 6 a mark is given for drawing a triangle 'more than half the length of the line'.

The examiners report also  refers to the TRIANGLE METHOD alot. What is this method/how does it work.

The only way I know to calc. a gradient is using (y2-y1)/(x2-x1). 

you get your straight line by plotting the points
then draw a triangle such that the line is the hypotenuse of a right angled triangle (if that makes sense?)
the triangle should be big so i recommend that you use the first and last point
basically it's rise over run which gives you the same answer ans (y2-y1)/(x2-x1)
Hope this helps


h

[holtadit]

Here....

[Vin]

Can you explain how PE and KE of water molecules change when evaporation occurs ?

Latent heat of Vaporization
If the molecules are to overcome the forces holidaying them together and gain "freedom" they need a large amount of energy. They receive this latent heat while heating which increases the PE of the molecules and NOT KE this causes only the temp rise. same for fusion

[8T]

you get your straight line by plotting the points
then draw a triangle such that the line is the hypotenuse of a right angled triangle (if that makes sense?)
the triangle should be big so i recommend that you use the first and last point
basically it's rise over run which gives you the same answer ans (y2-y1)/(x2-x1)
Hope this helps


h

Check ur inbox Hun (:

[Vin]

kkl but what are the values

YOU gotta measure them .. i dont have them on hard copy and its impossible to measure them on pc refer the ms

[pglasg74]

noor momani no but i know reema and lynn momani. why?

lynn is reema's mommm?

[lmfao]

not giving

[8T]

Diagram:
May 03 p3 q10 a ii)
Anyone offering help?

[holtadit]

Oh thanks Vin..
I need the other one Number 8a www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Jun/0625_s08_qp_3.pdf

Did you see my answer ?

[Vin]

Diagram:
May 03 p3 q10 a ii)
Anyone offering help?

[Vin]

Did you see my answer ?

hmmm .. nice .. could have been neater lol thanks

[mdwael]

Does anyone havve a good website or a resource to explain cathode ray osciliscope I dont understand one bit of the lesson and if it comes for paper 3 tommorow Im doomed  

[lmfao]

is a level hard

[8T]

Did you see my answer ?

YES, Its wonderful..altho i think u labelled the wrong lamps isnt the 2 6o not 100 and 60 ??
Thanks 4 the effort !

[8T]

Yes Vin it says that in the mark scheme but why for Q does it point to the left could you explain ..??