Qualification > Sciences

Physics AS practical 3rd Nov

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Sorceres:

--- Quote from: khi2ruh on November 02, 2009, 03:09:57 pm ---hey desperate help required!

usually for graphs i don't usually know how t set my scale up.

like this question on may/june 2008 31,my values for cos(Q/2) were from 0.79 to 0.87,six of them and they had to be plotted on the y axis.if i start from 0 and go on like 0.1,0.2,0.3... then its like i have wasted half my space and then my graph is right at the top,the examiners want us to use 3/4 of the spce available,so im not sure if im right or not.

--- End quote ---

u don't have to start from zero.

khi2ruh:

--- Quote from: Sorceres on November 02, 2009, 03:13:17 pm ---u don't have to start from zero.

--- End quote ---

oh i knew u could do that for x axis but can u do that for y-axis aswell?

and then if not zero then how do u do it i mean..leave the first block and then start with wateva value or just start from the value directly?

falafail:

--- Quote from: khi2ruh on November 02, 2009, 03:28:54 pm ---oh i knew u could do that for x axis but can u do that for y-axis aswell?

and then if not zero then how do u do it i mean..leave the first block and then start with wateva value or just start from the value directly?

--- End quote ---

"If either axis does not start from zero, this should be emphasised. A small zig-zag can be
inserted in the axis between the origin and the first scale point. Any other breaks in the axis
should be similarly marked."

Sorceres:

--- Quote from: khi2ruh on November 02, 2009, 03:28:54 pm ---oh i knew u could do that for x axis but can u do that for y-axis aswell?

and then if not zero then how do u do it i mean..leave the first block and then start with wateva value or just start from the value directly?

--- End quote ---

what i do is for the supposed "origin" horizontal line.. i write the value..

khi2ruh:
thanks ppl, i was totally confused on that matter,now i get it.

for the percentage uncertainty in Q(angle) will it be like

0.5/value of Q *100?

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