,Questio Answer Mark
n
1(a) aitrequires high temperature and pressure 1
AO1.1
A no emission of daughter nuclei B not a chain
does not produce radioactive waste
Questio Answer Additional Mark
n guidance
1(b) accept negative mass 3
difference throughout AO2.1
subtraction (1)
6.69 x 10-27 - 6.64 x 10-27
OR
0.05 (x 10-27)
OR
5.0 (x 10 -29)
use of % (1) accept use of
5.0 x 10(-29) x 100 0.05 x 10-27
6.69 x 10-27 6.64 x 10-27
evaluation (1)
0.75 % 0.75/0.747/0.753 to
any other power of
10 scores 2 marks
6.64 x 10-27 (x100%)
6.69 x 10-27
or
99% or 0.99 scores 1
mark
award full marks for
the correct answer
without working
Question Answer Additional Mark
guidance
1 (c)(ii) explanation linking 3
AO1.1
(red shift means) galaxies must galaxies getting
be moving away from Earth /us further apart
(1)
ORA
more distant galaxieshave
bigger red shift (1)
more distant galaxies moving
Type your text
faster (1)
Total Question 1= 8marks
, Question Answer Additional guidance Mark
number
2 (a) Substitution or 2
rearrangement (1) (Δh =) ΔGPE AO2.1
980 = 35 x 10 x h mxg
or
(Δh =) 980
35 x 10
allow use of 9.8 N/kg
or 9.81 N/kg
allow substitution into
visible incorrectly
rearranged algebraic
expression
evaluation (1)
(h = ) 2.8 (m) allow 2.85/2.86/2.9
for use of g = 9.8
N/kg or 9.81 N/kg
ignore use of
negative for decrease
in GPE
award full marks for
the correct answer
without working
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