Paper 6 Alternative to Practical. 0625/63. October/November 2011. 1 hour.
Candidates ... Do not use staples, paper clips, highlighters, glue or correction
fluid. DO NOT WRITE IN ..... The mass ms of the smaller piece is 34.5g. Fig. 5.2a
shows a ...
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education
CANDIDATE NAME
I
CENTRE NUMBER
ITID
CANDIDATE NUMBER
0625/63
PHYSICS Paper 6 Alternative
October/November 2011
to Practical
1 hour Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS
FIRST
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Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. DO NOT WRITE IN ANY BARCODES.
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Answer all questions.
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At the end of the examination, fasten !'III your work securely together. The number of marks is given in brackets [ 1 at the end of each question or part question.
This document consists of 12 printed pages. DC (SJF/CGW) ©UCLES2011
34207/4
H UNIVERSITY ~
of" CAMBRIDGE International Examinations
[Turn over
2 1
An IGCSE student is investigating pins.
the passage of light through a transparent
block using optics
The student's ray trace sheet is shown in Fig. 1.1. The student places two pins P1 and P2 to mark the incident ray. He looks through the block and places two pins P 3 and P4 to mark the emergent ray so that P 3' P4 and the images of P 1 and P2 appear to be exactly one behind the other. He draws the outline of the block. He removes the block and pins and draws in the incident ray and the emergent ray.
incident ray
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ray trace sheet
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transparent block
emergent ray
eye
Fig. 1.1 (a)
(i) (ii)
On Fig. 1.1, mark suitable positions for the four pins. Label the pins P l' P2' P3 and P4· Draw the normal at point A. [2]
© UCLES 2011
0625/63/0/N/11
3 (b)
(i)
Draw in the line AB. Measure and record the angle of refraction r between the line AB and the normal.
_
r(ii)
J.~C
~~QO CP.
.
9
(b)
Plot the graph of ~/~ to 7.0.
(y-axis) against ~/~
(x-axis). Both axes must start at 0 and extend
V'/1 ~ 6 all ~ts CO(~v-
CI1 :+
VVdl-Jo~ IoeSt-Bf
.0.WL
3
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ell
2
o (i)
2
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(c)
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,
Cl.M.&
o:
srwJf
p(Q-"k;
Co
[4]
3
Use the graph to find the intercept on the y-axis.
.
.-
Intercept on the y-axIs -
(ii)
~'n
,. '-i -'r 1·0
.
Use the graph to find the intercept on the x-axis. intercept on the x-axis
=
G..~.~ ..:~ ..i.~O
. [2] [Total: 7]
© UCLES 2011
0625/63/0/N/11
[Turn over
10 5
The IGSCE class is determining the density of modelling clay by two methods. (a)
Method 1 A student moulds a piece of modelling clay into a cube shape as shown in Fig. 5.1.
h
••
••
w front view
d side view
Fig. 5.1 On Fig 5.1, measure the height h, width wand modelling clay.
depth d of the cube-shaped
y
(i)
=
3.·..6.
cm
w=
3.~ .~ .
em
d=
~ s..
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h
(ii)
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)
piece of
'2.
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Calculate the volume V of the modelling clay using the equation V = h wd.
(iii)
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v=
Calculate the density p of the modelling clay using the equation p of the modelling clay m = 103 g.
1',:
where the mass
a , V -
p
=u[):~~j!Crn~ ~r or
© UCLES 2011
= ~,
0625/63/0/N/11
2.6 2·63
[3)
11 (b)
Method 2 The student cuts the piece of modelling clay into two pieces. One piece is approximately twice the size of the other piece. The mass ms of the smaller piece is 34.5g. Fig. 5.2a shows a measuring cylinder containing water. Fig. 5.2b shows the same measuring cylinder after the smaller piece of modelling clay has been lowered into it.
thread
cm3
_ 70 60 water
40 -30
water
modelling clay
20
::J Fig.5.2a
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(i)
Fig.5.2b
Record the volume of water V1 in the measuring cylinder, as shown in Fig. 5.2a.
50
(ii)
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V1 =
,.,-- ~-u.o~ --..~ m~ .
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..
=
,.~
[1]
Describe briefly one precaution you would take to read the measuring cylinder correctly.
.......... ~.K~ ~~~
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..........
"",
..Bottom. aI...men.i.Sw..$.
.
..................................................... ~..dJ.,t.tt ..\G'sio.n~ (iv)
[1]
Calculate the volume Vs of the modelling clay using the equation Vs
Vs::
= (V2 -
V1).
Va - V,
_
14
Vs (v)
[1]
Record the new volume V2 in the measuring cylinder, as shown in Fig. 5.2b. V2
(iii)
CKn~
Calculate the density p of the modelling ms 34.5g. t>_ 1ft .• _ J-
clay using the equation
I".~-:l V-J1 p
m
=....:..:..:..s.
. where
Vs '
=
'6 -
p= © UCLES 2011
0625/63/0/N/11
.:J.~.~31cJ. D
1are/-r
00'" ~
[1]
[Turn over
12 (c)
(i)
Assuming that the experiment has been carried out with care, suggest two reasons why the two values obtained for the density of the modelling clay in (a) and (b) may not be the same.
1.
..dJfb:~u~mar.~rf«4-d.CMb~iJs.h~
..or:. 2. or
(ii)
Sm.tl.llt:tr.
so..jn •.....
mtJf.ls
ill..aCCU'f"A.ry
.
bfAbb.kt..M C..~ /.tJlI.e.vtn 04...sily ..~W'cn uC~~Sfi£k.b.uIkKhi:ku9.':Bfly[21 Ofi.r...
State which of the two methods for determining density (method 1 or method 2) you judge to be less accurate. Give a reason for your judgement. method reason
t1e.tJi.o.d
O.r.
J...
He.r!l.cxI.
-L..h· sen..?.L'b~ mw..~ ..~.aa.f.OtL
..............
g
. . [1]
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[Total: 10]
Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.
© UCLES 2011
0625/63/0/N/11
