MINISTRY OF EDUCATION, SINGAPOREin collaboration with

UNIVERSITY OF CAMBRIDGE LOCAL EXAMINATIONS SYNDICATEGeneral Certificate of Education Advanced Level

PHYSICSHigher 2

9745101

Paper 1 Multiple ChoiceSpecimen Paper for examination from 2007

t hour 15 minutesAdditional I\,,laterials. [,4ultiple Choice Answer Sheet

Soft clean eraserSoft pencil (type B or HB is recommended)

READ THESE INSTRUCTIONS FIRST

Write ln soft pencil.Do not use staples, paper clips, highlighiers, glue or correction fluid-

Write your name, Centre number and index number on the Answer Sheet in the spaces provided unless

this has been done for you.

There are forty questions on this paper. Answer all questions. For eachanswers A, B, C and D.

Choose the one you consider correct and record your choice in softSheet.

Read the instructions on the Answer Sheet very carefully.

question there are four possible

pencil on the separale Answer

Fach correct answer will score one mark. A mark will nol be deducted for a wrong answer'

Any rouqh working should be done in this booklet

ft4"''n"o-""''"""=

This document consists of 22 printed pages.

and Assessme.t Board UNIVERSI I_Y o/CAMBRIDCElnternational Examinatbns

Bo7 97.15 o1lsRP

o ucLEs & MoE 2005 [Turn over

Data

speed of light in free space,

permeability of free space,

permittivity of free space,

elementary charge,

the Planck constant,

unified atomic mass constant,

rest mass of electron,

rest mass of proton,

molar gas constant,

the Avogadro constant,

the Bol?mann constant,

gravitational constant,

acceleration of free fall,

c=3.00"103msl

po=4'"r1o-7Hm1

ro = LBs x 10 12Fm 1

(1/(36r)) x 104Fm 1

e=1.60'10rec

h=6.63x10sJs

u=1.66x10'?7kg

m. = 9.11 " 10-31kg

mp - 1.67 x 10 27 kg

R = 8.31 J K l mol-1

Ne=6.02x10'?3mo|-1

k = '1.38 x 10 'z3J lcr

G = 6.67 x 1o-11Nm'?kg 'z

9 = 9.B1 ms-'?

o ucLEs a MoE 2005 9745/01/SP07

Formulae

uniformly accelerated motion,

worKdone on/by a gas,

hydrostatic pressure,

gravitational potential,

displacement of particle in s.h.m.

velocity of particle jn s.h.m.,

resistors in series,

resistors in parallel,

electric potential,

altemating currenUvoltage,

transmission coeff cient

radioactive decay,

decay constant,

s=ut++at'v2=u2+2as

p: pgh

,Gmp: r

V:VICOS(Dt

= !. [*," - r,

R =R1 + R2+...

1tR=1lRi+1lR2+...

V =Ql4n€or

T : exp(-2kd\

x: xo exp(-Zf)

, 0 693^ = t,

1

*y.,"," p = .lU$ E)

O UCLES & MOE 2OO5 9745n1ISPO1 [Turn over

4

What is a kilowatt hour?

o #3, " ?333,

A

ii

c 60 000J D 3 600 000J

Which vector triangle shows the resultant of the subtraction P - Q ?

B

F

c

P

D

P

o uclEs a MoE 2005 9745t01tSP0T

5

velocity-time graph of a journey is shown in the diagram

veiocity

time

What is the shape of the acceleration-iime graph for the same journey?

acceleration

A

0

acceleration

time

time

time

B

c

acceleration

acceleration

D

o ucLEs &MoE 2005 lTurn over

6

ln an elastic collision the velocities of tlvo objects of masses 20kg and B0 kg are shown below'

before collision

after collision

What is the final velocity of the 20kg mass?

A 12.Bms' B -2.8ms-' C +2.8ms-1

5.0ms 1

C 8.6ms' D

D +12.8 m s=r

10.2ms 1

5 A child is sitting on a playground turntable and is rotating with uniform angular velocity.

The resultant force that the turntable exerts on the child is '160 N. The weiqht of the child is 120 N-

What is the acceleration of the child?

A 0.88ms ' B 3.3ms '? 84.3m s 2

O UCLES & MOE 2OO5 974510115P07

7

A beam of weight 160 N is supported at X and Y. Loading on the beam and dimensions are

shown in the diagram.

l4jrn0.40 m

0 90m

800 N

What support is provided by X and by Y?

support at x support at Y

A

B

cD

400 N

400 N

570 N

740 N

1960 N

'1160 N

990 N

B2O N

@ ucLEs & MoE 2005 [Turn over

A spring, fixed at one end, has a mass atiached to the other

down. liis shown in the diagram at three positions X, Y and Z-end. The

z

D 760/"

mass bounces uP and

mass stationaryat top

mass moung up ordown at centre with

maximum speed

mass stationaryat bottom

Which line gives the kinetic, graviiational potential and elastic potential energies?

kinetic energygravitational

potential energyelastic

potential energy

B

c

D

zero at top

maximum in centre

zero at bottom

maximum in centre

maximum at top

zero at bottom

zero at bottom

maximum at top

maximum at top

maximum in cenlre

zero at top

maximum at bottom

A crane lifting a container out of the hold of a ship is wofting at a rate of 670 kW. The containerhas a mass of40 tonnes (1 tonne = 1000kg) and is rising with constant speed of '1.3ms r.

A Nm'zkg' B kgm' C ms 2 D Jksr

'tO The Earth, at a distance of 1.50 x 10rr m from the Sun, orbits the Sun in one year.

What is the efficiency of the arrangerrrcnt?

A O.O7A% B 7.A% C 59%

The unit of gravitational field strength is N kg 1.

What is an equivalent unit to this?

Jupiter is 7.83 x 101r m from the Sun.

What is its orbital period?

A 2.28 yeats B 5.22 yeats 11.9 years

o ucLEs & MoE 2005

D 27.2 yeats

9

11 A satellite falls from a point P to a point Q ctoser to the Earth's surface

Which change in qravitaiional potential is possible?

A 40MJkglatPto 50l,4Jkg-r atQ

B -5OMJkg at P ro -40 lMJ kg I at Q

C 5OMJkg ' al P lo 40N4Jkg ' al Q

D 40N4Jkq I at P to 5oMJkg I at Q

'12 Which statement about a geostationary satellite is correct?

A lt travels from east to west.

B lt is vertically over the North Pole

C lt takes 9C minutes to orbit once around the Earth.

D lt is accelerating.

13 Which graph shows velocity against displacement for a body undergoing simple harmonicmotion?

c

velocjty

/o\0 displa

displacement displacement

displacement

o ucLEs & MoE 2005 [Turn over

10

14 The displacement x of a molecule undergoing simple harmonic motion in a sound wave is given

by

x = xo sin 2rft

where x" = O.32mm and /= 10 000H2

What is the maximLlm acceleration of the molecule?

A 2.0'1 " 101ms 'z

B 2.O1 , 1Oa rr|s-z

C 1.26 x 106ms'?

D 1.26 x lOems'

15 When damping is increased on an object undergoing resonant frequency oscillation, whichchange does not occur?

A The amplitude of the driving oscillation decreases.

B The amplitude of lhe forced oscillation decreases-

C The resonant frequency decreases-

D The sharpness of the resonant peak decreases.

16 The random kinetic energy of all the gas molecules inside a tyre of an aircraft in flight is 63 ki.The translational kinetic energy of these molecules is 10 kJ. The randofi potential energy of themolecules is -2 kJ and the potential energy due to the height of the aircraft is 4ki.

What is the internal energy of these molecules?

A 61kJ B 65kJ C 71 kJ D 75kJ

17 An ideal gas has a volume of 5.3 x 10 3 m3 when at a pressure of 1.04 , 10s Pa and atemperature ol24oC.

How many molecules does the gas contain?

A 027 B 3.9 c 1.6' 10'3 D 2.4x10?a

18 When a volatile liquid evaporates it cools down.

What molecular behaviour is the reason for this cooling?

A All lhe molecules slow down

B The molecules collide with one another less frequently.

C Molecular collisions result in loss of kinetic energy of the molecules.

D Fast molecules leave the sudace so the mean speed of those left behind is reduced-

o uclEs & MoE 2005

11

19 Inanideal gas at 50O oC, the mean kinetic energy of the gas molecules is 1 6 ' 1O-'?3 J

What are the values for the temperature of the gas and the mean kinetic energy of the gasmolecules when its molecules are, on average, travelling at twice the speed?

temperature /'c kinetic enerqy / J

B

cD

1000

1300

2000

2800

3.2 x 1O 23

3.2 v 10 23

6.4 x 1O 23

6.4 x 10 'z3

20 A radio wave used for a television transmission has a Wavelength of40cm

Whai is the frequency of the transmission?

A 7.5MHz B 12O MHz C 750 MHz D 12 000 [,4H7

21 A longitudinal wave cannot undergo

A total internal reflection.

B polarisation.

c diffraction.

D interference.

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12

22 Energy lrom a point source of waves spreads out uniformly in

intensity of the waves at a distance x from the source are A andall directions. The amplitude and1 respectively, as shown.

amplitude Aintensity /

4x

Assuming no absorption by the medium through which the wavesamplitude and intensity at a distance of4x?

are travelling, what are the

intensity atdistance 4x

amplitude atdistance 4x

B

cD

It16

2

Al16

Al2

o ucLEs & MoE 2005

13

23 A diffraction grating is used to produce the characteristic ljne spectrum from a lamp that emits ared line (R), a green line (G)and a blue line (B).

Which pattern of light through and beyond the grating is possible?

B

B

G

R

lTurn over

BG

R

B

R

G

B

RGB

BGR

light from lamp

grating

light from lamp

grating

light from lamp light from lamp

o lJct Es & MoE 2005 s745101/SP07

24

14

What is the pattern of the electric field between a positively charged conducting sphere and a

metal plate near to it?

o uclEs & MoE 2005

't5

with a potential of 500 V, and equipotential lines

How much work is done on an electrcn in crdei to move it from point P to point Q?

The diagram shows a square meial platesurroundinq it.

300v

A -1.6 i 10 r7J

B 4.8 x 10 17J

C +1.6 x 10 17J

D +4.8 : 1o-r7J

Which statement about electric field and gravitational fleld is incorrect?

A Electric field is force per unit charge.

B Gravitational field is force per unit mass.

C At the end of an electric fleld line there will be a positive charge.

D At the end of a gravitational field line there will be a mass

What is the definition of resistance?

A Resistance is the potential difference per Llnit current

B Resistance is given by the equation R = Pll,4.where p is the resistivity ofthe material,7 is the length of the wire and A is its area of cross section.

C Resistance is the gradient of the graph of potential difference against current

D Resistance ;s the voltaqe required for a current of one ampere-

27

o ucLEs & MOE 2005 97 45tA1tSP07 lTurn over

16

ln the circuit shown, a battery supplies a current of 0.025A for B0 s- During this time it produces'18 J of electrical energy while resistor M receives 1 1 J and resistor N receives 4-0 J.

What is the e.m.f. ofthe battery and its internal resistance L?

e.m.f. of batteryinternal resistance

of battery

B

c

D

1.5V

9.0v

9.0v

16.5V

60o

60()

360c)

360c)

o uclEs & MoE 2005

17

A 12V battery of negligible resistance is used with a potential dividerto provide a variable voltage

across terminals P and Q.

load resistor Z

Theresistorsinthepotentialdividerareaf]xedresistorYofresistance200oandavariableresistorX whose resistance can be changed between 100() and 1200O

WhatrangeofpotentialdifferencescanbeobtainedacrosstheloadresistorwhenitsValueis400 ()?

maximum/V minimum/V

B

cD

7.2

10.3

10.7

12.0

3.4

4.0

8.6

8.0

An alpha particle travelling in a vacuum enters a uniform magnetic field of flux density 0 082 T

and is deflected into a circular path of radius 0 066 m.

What is the speed of the alpha particte? (mass of alpha particle = 6 7 ' 10 '?? kg)

A 5.1 ! 1o'zmtl

B 1.3 x 105ms 1

C 2.6 x 10sm s-1

D 1.3 " 106ms-l

o ucLEs & MoE 2005 97 4a1A11aPA7 lTurn over

.

18

3l - Ari electron moves into a magnetic field and is deflected by it- The first diagram shows a side

view of this and the second diagram shows the view with the electron as it initially comes towards

an observer-

ln which direction will the electron be deflected?

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.': ^^lxxxxxxxxxelecrron ^\r^^r^^^^^-<xxxxxxxxxxxx

--;--\ I \magnetic

view frcm the front fieldside view; field into paper

o ucLEs & MoE 2005

32

19

Vo causes a sinusoidalA sinusoidal voltage of maximum valueshown.

Which graph shows how themaximum power YJo and mean

power varies with time togetherpower yrns4ms?

current of maximum value /o as

with the relationship between

\v.

c

33

r.v.

What is the de Broglie wavelength of an electron travelling

A 2.BB x 10r1m

B 2.43 r 1O 12m

c 3.16 ' 10-11m

D 4.60 x 10 7m

at a speed of 2.30 x '107ms r?

o ucLEs & MoE 2005 9745/01/SP07 [Turn over

35 X-ray spectra are taken from hro X ray tubes P and Q. The intensity of the X-rays is plottedagainst the wavelenqth in both cases and is shown below.

20

The graph shows how the maximum energy of photoelectrons varjes with the frequency f of theradiation used to produce the photoelectrons

maxlmumenergy of

photoelectrons

frequency

What does the gradient of this graph represent?

A e% where e is the electronic charge and % is the stopping potential

B%C h the Planck constant

Dhf

X-tayintensity

What deduction can be made from these plots?

A X-ray tube Q has the higher voltage applied lo it and the target material in both tubes is thesame.

B X-ray tube Q has the higher voltage applied to it and the target materjals in the two tubes aredifferent.

C X-ray tube P has the higher voltage applied to ii and the target matenal in both tubes is thesame.

D X ray tube P has the higher voltage applied to it and the target mate als in the two tubes aredifferent

wavelength

oUct Fs & MoF 2n0s

21

36 The word LASER comes from the first letters of the words in the phrase Light Amplification by theStimulated Emission of Radiation.

What is meant by slimulated emissionz

A an electron from a hlgher level falling to a lower level

B a charged particle causing light to be emitted from an excited atom

C a charged particle being emitted from an atom as a result of a high energy photon hitting theatom

D a photon causinq another photon of the same frequency to be emitted from an excited atom

37 Energy levels for electrons in materials vary with the separation of atoms as shown for a

semi;nductor material in which the valence band is filled and the conduction band at low

lemperatures rs emplY.

At which separation does the graph show the matedal behaving as a semiconductor at room

temperature?

energy

interatomic distance

o uclEs & MOE 2005 9745/01/S P07 ffurn over

Which diagram shows possible paths when

22

alpha particles are

6-Yc

'107s.

a source made

37 x lO11

deflected by a gold nucleus?

B

gold nucleus gold leus

alpha particles

nuc

oalpha particles''+--=\

-+,- ,- --.._

+-===-\\\\\

\\\

c D

gold

alpha particles

40 A radioactive material has a hall-life of 4.3 x

How many radioactive atoms are present inof8.7 i 1o'gBq?

A 2ox1o2 B 29x1o2 c

gold nucleus

alpha particies

of its constituent protons and neutrons is Y.

nucleus

o

39 The mass of a nucleus is X The total mass

What is the bindinq enerqy of the nucleus?

A X-Y B Y-X C D (v-x1c

of this material when

D 54r1017

it has an activity

Permssion lo €produs il.ms whe.e rhrd pa,ly oM€d marerial prorecled by copyrilhr 3 n.udcd has boen soughl and cleaGd wh€re possbe Ev€ry

r,aasomb e etro has been made by Ihe pub'sher (UCLES) 10 l'acc copyrqh rolders bul 'rany nems requinnq cearanamendsslllreealieslpossbleoppoionty

un versrly or Cambrdqe ni€rnalioia Exam'natons is pad olrhe univeEiiyol Cambrdse Lo.a Eramnat.is syndrale (ucLES), which 's

Lcelra depadm€nlor lhe Univ€rsiry orcat'bidle

o ucLEs & MoE 2005 9745/01/SP07

UNIVERSITY"/CAMBRIDC:International Examinations

MULTIPLE CHOICE ANSWER KEY

Subject Name: H2 Physics Specimen Paper

P ease cornplete the deta ls below n the irsl row of boxes

(lflhe same key h to be used for aternative papers peasecompele

s gnalure of slbject otlce.cenifv nq that ke! s corcct Date

SLrbleclNo

97 45 01 40

D

2 D

3

4 B

5 c

6 B

7 D

8 D

I c

10 c

11

12 D

13 c

14 c

15

16

17 c

18 D

19 D

2A c

21 B

22

23 c

24 B

25 D

26 c

27

2A B

29

,]0 c

31 D

32 D

33 c

c

35

36 D

37 B

38 B

39 D

40 D

S gnalure oi Prooi Checkercerliyinq ihal key s correct

Dale

Fi6i Prooi [4oderated

Second Revised Proof