January 31st end of week 1
Generally, I think I did quite well with this weeks papers, scoring at least 70% on all papers, 2 (weak) As and a C. by this time next week I'll probably have completed all of the questions I lost marks on again, and will post the results.
This week, I've completed:
June 2013 FP1- on the topics which I have been taught, scoring 33/39 marks, (84.5% being a strong A, 78% being borderline) not a bad start. The areas in which I lost marks were in simple algebraic manipulation and simple multiplication, other than that my understanding was solid.
May 2010 G481- scoring 48/60, a borderline A on the paper. The questions which I need to redo are: 1d, 2bii, 3a, 3bii, 3biii, 5c, 6aii, 7bii.
Marks were lost because:
>I didn't know that when terminal velocity is reached, drag=weight. (1d)
>Didn't consider sources of inaccuracy critically enough, or describe with enough detail. (2bii)
>Definition of a Newton: The force required to move 1 kilogram with an acceleration of 1 meter per second squared. (3a)
>Net force must be used in calculations, not just force in one direction. This is because Newton's second law is NET force= mass*acceleration (3bii)
>Using Newton's second law, I failed to understand that if force is constant, if acceleration increases mass must decrease. (3biii)
>For a describe and explain question, list as many things as marks required (5c).
>Made basic errors on Yung Modulus not worth detailing because I got bored.
May 2010 F321- scoring 43/60, a C on the paper.
>I shouldn't round my answer until the end of the question. (1c)
>I need to properly learn how to calculate empirical formula. (1d)
>I need to learn descriptions of reactions of acids and carbonates, not just the equations. (2aii)
>My understanding of mole calculation has dissolved. Require more practice (2bii, iii)
>Didn't consider the fact that there can be more than 1 P sub-shell in an atom, e.g Chlorine. (3bii)
>Lack of knowledge of Group 7 elements and reactions between them. Requires urgent attention (all of question 4a)/
>Not explicit enough when describing disproportionation reactions.
>Poor understanding of Group 2 elements and how ease of thermal decomposition decreases down the group. Require urgent attention (4ciii).
>Must state the number of bonded/lone pairs in a given molecule whe asked to explain bond shape. (4dii)
>Must refamiliarise myself with the shapes of molecules (e.g Pyramidal, 107 degrees). (4e)
>Describe atomic radii in terms of attraction of outer electrons, as well as other stuff. (4f)