5054 S13 Ms 21

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5054 S13 Ms 21
CAMBRIDGE INTERNATIONAL EXAMINATIONS
GCE Ordinary Level

MARK SCHEME for the May/June 2013 series

5054 PHYSICS
5054/21

Paper 2 (Theory), maximum raw mark 75

This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers.
Mark schemes should be read in conjunction with the question paper and the Principal Examiner
Report for Teachers.

Cambridge will not enter into discussions about these mark schemes.

Cambridge is publishing the mark schemes for the May/June 2013 series for most IGCSE, GCE
Advanced Level and Advanced Subsidiary Level components and some Ordinary Level components.

Page 2

Mark Scheme
GCE O LEVEL – May/June 2013

Syllabus
5054

Paper
21

Section A
1

(a) 11 cm

B1

(b) (graph is) a straight line/linear or has constant gradient or not curved

B1

(c) (i) change in speed/velocity same change in uniform/same time or in 1 s

M1
A1

(ii) 1.
2.

2

3

0.8 N

B1

(a=) F/m algebraic or numerical e.g. F = ma; 0.8/0.2
(ecf 1. but not if F = 0)
4(.0) m/s2

C1
A1

(a) total/resultant moment zero or (sum of) clockwise = anticlockwise moment

B1

(b) F1d1 or F2d2 seen in any form
8(.0) N

C1
A1

(c) 4 + 1.2 or 5.2 seen
2.8 N ecf (b) i.e. accept 5.2 – (b) or (b) – 5.2

C1
A1

(a) Q and R

B1

(b) ρgh in any form, algebraic or numerical
1.0(336) × 105 N/m2

C1
A1

B1
(c) water is less dense or has density 1000 (kg/m3) water further up tube/fills tube or height greater or water enters pump or water boils B1

4

(a) (i) 120 °C or –10 to 110 °C

[5]

[5]

B1

(ii) same distance/length (on scale) for a temperature rise (along scale) or regular intervals/equal divisions (ign. numbers equally spaced)

B1

(iii) diagram with any two markings further apart and none

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