[-tReVoR-]

Well exam time has come round again so i've started revising and doing past papers starting today. I am doing OCR physics A Forces Fields and Energy and have been answering some questions in past papers. The thing is i also do maths and i have been able to use some of the stuff i learnt for my AS and A2 to answer physics questions (e.g Trapezium rule to find area under force time graph to find the impulse, or differentiate trigonometric functions to find there gradient for calculating rate of change of flux linkage). I am chuffed lol that i can apply my maths and it gives me the right, and according to the mark scheme exact answer (you know like normally they say 3.8 +- 0.3 and i get exactly 3.8). But it has occured to me that i won't get the working out marks because these ways of finding the solution are not in the mark scheme or syllabus. I'm not trying to show off to the examiners, to be honest i am a very sloppy canditate in the sense i make alot of mistakes and misjudgements when it comes to approximation, counting squares and drawing tangents to curves to find gradients, i always find my answer lying just outside the range they want . My question is will i still get the marks if i answer using my maths which i prefere using because it's more accurate and leaves no room for error. I also use my maths in chemistry for estimating concentrations remaining in first order reactions (using the exponential decay functions rather than sketching a graph which i always do the curve to steep or somthing).

[JoeWed]

As long as you get the correct answer you still get all the marks - you can work the questions out however you please. The only difference is, if you don't get the answer right you're probably not going to get any marks whereas if you did it the way they expect you may get a couple of marks for working.

[martin-jesusfreak]

Sometimes the mark scheme will also show working for more advanced methods such as these I think...

[-tReVoR-]

It's just in the mark scheme it says '1 mark for drawing tangent to curve' '1 mark for attempt at measuring gradient' and i have done none of these lol. So your certain the right answer gets you ALL the marks?

[Kerny]

If you are using a method that calculates the answer correctly then I don't see why you wouldn't get the marks (for method and answer). Unless ofc the question explicitly demands the use of a certain method.