June 2003
INTERNATIONAL GCSE
MARK SCHEME
MAXIMUM MARK: 40
SYLLABUS/COMPONENT: 0625/01
PHYSICS
Paper 1 (Multiple Choice)
Page 1Mark Scheme Syllabus Paper IGCSE EXAMINATIONS – JUNE 200306251
Question Number Key Question Number Key
1A21D 2B22D 3B23B 4C24B 5D25B
6C26D 7A27A 8D28A 9B29B 10B30D
11A31C 12C32D 13B33A 14D34A 15B35C 16A36B 17A37D 18A38A 19B39D 20D40B
TOTAL 40
June 2003
INTERNATIONAL GCSE
MARK SCHEME
MAXIMUM MARK: 80
SYLLABUS/COMPONENT: 0625/02
PHYSICS
Paper 2 (Core)
NOTES ABOUT MARK SCHEME SYMBOLS
B marks are independent marks, which do not depend on any other marks. For a
B mark to be scored, the point to which it refers must actually be seen in
the candidate’s answer.
M marks are method marks upon which accuracy marks (A marks) later depend.
For an M mark to be scored, the point to which it refers must be seen in
the candidate’s answer. If a candidate fails to score a particular M mark,
then none of the dependent A marks can be scored.
C marks are compensatory method marks which can be scored even if the points
to which they refer are not written down by the candidate, provided
subsequent working gives evidence that they have known it, e.g. if an
equation carries a C mark and the candidate does not write down the
actual equation but does correct working which shows he knew the
equation, then the C mark is scored.
A marks are accuracy or answer marks which either depend on an M mark, or
allow a C mark to be scored.
ans ‘correct answer only’.
<
made an earlier mistake and has carried his incorrect value forward to
subsequent stages of working, he may be given marks indicated by
<
f. provided his subsequent working is correct, bearing in mind his
earlier mistake. This prevents a candidate being penalised more than
once for a particular mistake, but only applied to marks annotated
‘e.c.f.’.
Brackets ( )around words or units in the mark scheme are intended to indicate
wording used to clarify the mark scheme, but the marks do not depend
on seeing the words or units in brackets, e.g. 10 (J) means that the
mark is scored for ‘10’, regardless of the unit given.
Underlining indicates that this must be seen in the answer offered, or something very similar.
ans ‘unit penalty’. An otherwise correct answer will have one mark deducted if the unit is wrong or missing. This only applies where
specifically stated in the mark scheme. Elsewhere, incorrect or missing
units are condoned.
OR/or indicates alternative answers, any one of which is satisfactory for
scoring the marks.
QUESTION SCHEME TARGET
GRADE MARK 1(a)8F B1
(b)EITHER OR
greater smaller
AND AND
Thickness of rule thread stretched when
on rule OR overlap at ends OR worn rule ends F B1
2
2(a)(i)10F B1 (ii) stretch OR shape (or suitable sketch)C B1
(b)(i) 120F B1
(ii) up(wards) OR vertical (NOT vertically down)
Accept arrow on diagram
F B1
(iii) increase size/area of blocks/larger blocks OR increase number of blocks
OR less soil in pot (NOT put pot on harder
ground)F B1
5
3(a)0.97 – 0.51
0.46F
F
C1
A1
(b)(i) 15F B1
(ii) f.C B1 (iii)    D = M/V in any form, seen or implied
(words/letters/mix)
F C1
EITHER OR OR
460 5150.46
515
0.46
515 ´ f.
C C1
0.8932…8.932… ´ 10-4893.2…f.C C1
(any number of significant figures)
0.898.9 ´ 10-4890 (e.c.f. for
significant
figures)
C A1
g/cm3kg/cm3kg/m3F B1 (0.89 kg/dm3 is
OK)
(NOT 8.9-04)9
4(a)idea of air molecules moving (allow vibrating)
ignore subsequent bad blocks(N.B. ‘collide’ = ‘moving’)
idea of air molecules striking something (condone
themselves)
idea of air molecules striking walls F
F
C
C1
C1
A1
(b)(i) moves down F B1
(b)parallel to ray striking mirror 1 (allow incident ray)
OR same direction (NOT equal/same as)
(N.B. sentence must be completed, i.e. no inference
from line on diagram)C B1
4

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。