Biology and Physics ATP inuiry

[shehri]

Firstly i would like to say that this is a GREAT platform and Mashallah sa you guys have helped me alot!
My question is that the graphs in Biology/Physics, can we make them with straight lines, if it is not specified to make a curve. Also often i see in physics past papers they saying "straight line to best fit" and the points don't make a straight line... what does that mean!

 

[ShAhEer ZahiD]

in physics mostly it happens that point do not lie in a line ..
we usually make a straight line . .means ,take some points (abt 2) which are in straight line and equal number of points above and below the line.. this is graph of best fit
hope it heLps

 

[ShAhEer ZahiD]

abt the graphs in biology ..
it's really difficult to know tht we r to make a straight linr or a curve . .i have seen in past papers , in some graphs curves and in some staight lines...

 

[shehri]

Only make curve if asked,

 

[sweetiepie]

ATP Notes
http://www.xtremepapers.com/community/threads/atp-notes.20798/

 

[thementor]

Firstly i would like to say that this is a GREAT platform and Mashallah sa you guys have helped me alot!
My question is that the graphs in Biology/Physics, can we make them with straight lines, if it is not specified to make a curve. Also often i see in physics past papers they saying "straight line to best fit" and the points don't make a straight line... what does that mean!

In Biology points can be joined with ruled line or using a ruler, or a curve can also be drawn...there are no restrictions in biology...
In Physics, ruled line are rarely required....always a line/curv of best fit is required.
Point to remember: A line/curve of best fit means that the line/curve passes through most of the points plotted in a neat and smooth way.

 

[Sheheryar Yousaf]

Always Make best fit graph!
Leave equal number of points above and below the line.
You may refer to the Starting pages of Red spot atp (yearly)