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5129 w13 ms 22.pdf


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Mark Scheme
GCE O LEVEL – October/November 2013

Syllabus
5129

Paper
22

(a) W = F x s or120 000 x 50 or mgh
= 6 000 000
(allow 6000 kJ with correct unit)

[1]
[1]

(b) P = E/t or 6 000 000/120 or (a)/120
= 50 000
W (unit independent)
3 000 000 W scores 2, a/2 correctly calculated scores 1 mark

[1]
[1]
[1]

(a) volume/density
length
pressure
e.m.f./voltage
colour
resistance

any 2
[2]

(b) ability to read smaller changes in temperature

[1]

difference between highest and lowest reading

[1]

8
aerobic
respiration

anaerobic
respiration

x





x











x
[5]

9

(a) (i) C6H14
(ii) 95–100

[2]

(b) same general formula
similar chemical properties
show a trend in physical properties

any 1

(c) (i) structure of ethane
(ii) carbon dioxide
water/steam (accept correct formulae) either order

© Cambridge International Examinations 2013

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