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Hi, everyone!
Firstly, thanks to the XPC for being really quick in replying and all, to any issue that I've posted over the course of being a member of this forum.
Down to business, I am stuck of Physics P5. To be specific: the Question 2 gradient calculation. I've repeatedly calculated gradient for many past paper Q2's, but the thing where I get confused is that:
When one of the axis have, say, × 10^-2 on it, and the other doesn't (take 2012 June/51 as an example), and I calculate the gradient WITHOUT putting the × 10^-2, my answer comes 1.6, which is in fact correct, according to the mark scheme.
This is in conflict with what we have been taught. If I put the × 10^-2 in the gradient calculation, then the answer (not accepted by mark scheme) is something else.
The exam reports aren't helpful. All they say, and I quote : "... were confused by labelling of the axis for lg I and 10^-2" See what I mean? So frusturating.
Please, if anyone knows this, why we do not include power of ten in our gradient calculation, and why at times we do, please answer me.
Thanks!
Mer.
Firstly, thanks to the XPC for being really quick in replying and all, to any issue that I've posted over the course of being a member of this forum.
Down to business, I am stuck of Physics P5. To be specific: the Question 2 gradient calculation. I've repeatedly calculated gradient for many past paper Q2's, but the thing where I get confused is that:
When one of the axis have, say, × 10^-2 on it, and the other doesn't (take 2012 June/51 as an example), and I calculate the gradient WITHOUT putting the × 10^-2, my answer comes 1.6, which is in fact correct, according to the mark scheme.
This is in conflict with what we have been taught. If I put the × 10^-2 in the gradient calculation, then the answer (not accepted by mark scheme) is something else.
The exam reports aren't helpful. All they say, and I quote : "... were confused by labelling of the axis for lg I and 10^-2" See what I mean? So frusturating.
Please, if anyone knows this, why we do not include power of ten in our gradient calculation, and why at times we do, please answer me.
Thanks!
Mer.