8/18/2019 cxc2002p1-1

1/12

FORM

TP

22L37

C A I I

I B I } E A N

I ' X A M T N A l ' I O N S

C O I - ] N

SBCONDARY IIDI-'CA'I'ION CIII(]'IFICA'I'E

Ii,XANTINATION

PHYSICS

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8/18/2019 cxc2002p1-1

2/12

- z -

I .

Which of

the o.llowing

hysical

uarttities

doesNOT

havea unit?

Refractive

ndex

e.m.f.

Density

Frequency

The base

unit of

temperature

f the S.l.

systenr

s the

(A)

degree

Celsius

(B)

degree

Falrrenheit

(s

Kelvin

(D)

degree

erttigradc

Themass

f a

piece

f

nretal

s 43.7

g

arrrl

i ts volume

s 5.6 cmt.

A student

ses

a

calculator

o find the

density

of

the nctal

and

obtains

he igure

7.80357l.

FIe

hotrld

write

the density

as

(A)

7.803571

cm-l

/@)

7.80

g

crn'3

r'G)

7.8

g

cmt

(D)

8.0

e

A simple

endulum

scil lates

bout

entrc

O between

ositions

and

Y. Which

ofthe

following

could represent

nc

completc

oscillation?

(The

arrows

ndicate

he di-

rection

of

movement.)

' 1 .

X + O - > Y - ) O - + X

, l l .

O - + X - > O - > Y - > O

I I I .

Y + O - + X

(A)

I only

(B)

II I only

(O) I and I

only

(D)

I,

I I and

II

The

unit

of

electrical

expressed

s

(O

lC):

I V.A' l

(B )

l c ) :

I A .V

( c )

l c )+

A.v ' '

( D ) l O : I W , A - l

6.

Itcrrr

6 rcfers

o tlre

diagranr

clorv.

a R

Whcn r

:

0,

thc valucofy

is

(^)

a

(b)

s

(C)

I)

(D)

I'lt{

(o

(B)

(c)

(D)

2.

3.

1

4.

1'rvo ig ht, styrofoanr

pltcrcs,

and B,

are

suspcnded

y insulat ing

ltreads. I f

they

arc at

rcst i t t the

posit ior ts l tolvn

n

the

diagranr,

lrc

force

keeping

lrctnapart s

(A) gravitat ionalorce

(O)

clectrostatic orcc

(C)

lr tag,l lct ic

orcc

(D) cclttripetal orce

resistancc

may be

GO

ON

TOTIIE

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PAGE

8/18/2019 cxc2002p1-1

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8.

- J -

In

rclat ion

o hc

diagranrs

clorv,

, l l ic l t

ofthe

fol lorvir tg

statentents

s/arc

corrcct?

I .

"

TI .

I l t .

(o)

(B)

(c)

(D)

Body

A

is

i t t

t tcutral

8/18/2019 cxc2002p1-1

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8/18/2019 cxc2002p1-1

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- 5 -

t9 .

An

uninsulated

losed

ontainer

itlt

water

is

heated

rorn

room

temperature

30"C)

until

all tlte

waterhas

evaporated.

Wlrich

of the

following

graphsmost

accurately

represents the var iat ion of watcr

temperature

@)

with

time

(r)?

0t"c

et"c

Whiclrofthe

following

would bc

rcsponsi-

ble or theheating f the arth by thcSun?

Sonrc

nol tcn

napl t t l ra lcne

t 100"C

s

allowed

o cool

dorvn

at

roottl

ctttpcrature.

l f

naphthaletrc

tas

rtrclt irrg

ointof 80"C,

which

of

the

following

BES"[

represettts

thccoolirrg urvc?

0/

cc

0 l ' c

ioo

80

An

cxpcr intcnt

s sct

up wit l t

a.s lnoke

cl l

lbr dcrrottstrat ing rowtt ian notiott. ' l ' l tc

lnoving

spccks

obseryed

ar e

(&

stnoke

particles

secn

by reflcctcd

l igh t

(B)

smoke

particles n

cottstattt ibra-

t ion

molecules

f

vibrating

ir

rnoleculcs

f

carbon

tt randotn

21.

(A)

0/

0c

' 1 0 0

(A)

80

100

80

(@

(B )

(o

(D)

20.

27.

I .

I I .

ru.

Radiation

Convection

Conduction

I

only

II I

only

I and

I only

lI and

II

only

(c)

(B)

(c)

(D)

(c)

(D)

t/nrin

/ /nt in

/min

t/rnin

CO ON

TO THI] NEXT

PAGE

8/18/2019 cxc2002p1-1

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6 -

26.

23,

(B)

(c)

(g)

The

figure

above

shows

a

Piece

of

ice

wrapped

in copper

gauze and

subtnergcd

in

a

glass test

tube of

water.

T'he

watcr

when heated

at

the

op boils

long before hc

ice is

melted.

The

MAIN

reason

or

this

is

that

(A)

the

test

ube

is

a

poor

cottdttctor

of

heat

copper

s

a

good cotrductor

of

hcat

ice is

less

dense

than

watcr

water

is

a

poor

conductor

of

hcat

Radiation s BEST absorbed y surfaccs

which

are

Water

wavcs

which

are

produced

n

a rip-

plc tank

travel

morc

slowly

as

they

move

fronr

decp

to

shallow

water.

Which

of

th e

fbllowing

can

this fact

be

used

o detnon-

strate?

I.

Reflection

",

ll.

I(efraction

III.

Diffraction

(A) I

orrlY

@

II only

(C) I

and

l l onlY

(D)

I, II

and III

' fhe notc from a drum is louder when it is

struck

harder

becausc

the sound

waves

produccd

have

a

greatcr

(@

anrpl i tudc

(IJ)

frequertcY

(C)

wavelcr tgl l t

(D)

vclocitY

Which

of

the

following

would

have

th e

shortcst wavelength?

(A)

Infi'a-red

raYs

(Q) Light

rays

(C) Sound

wavcs

(D)

Watcr

wavcs

Which

of

thc fol lowing

statclt tents

s/are

truc?

"1.

J 'hennal

radiat ion

is

a type

of

' electrontagteticradiat ion.

IL

BIuc

light

lras

a longer

wavelengtlt

tltan

infra-red

radiation.

.,

III.

The

velocity

ofX-rays

in

avacuunr

is 300

000

000

m

s ' r .

(A) I and

II

onlY

(B)

I

and

III

orr lY

(C)

I I

and

I I I on lY

(D)

I , I I

and

l l

27.

7.8.

29.

24.

25.

According

to

tlre

kinetic

tltcoty,

wltctl a

gas

in

a

closed

container

s

lrcated

ltc

pressurc

rises

because

(A)

(B)

(o)

(D)

(1)

(B)

(9

black

and

shiny

white

and

shiny

black

and

dull

white

and

dull

there

are

more

molecules

hitting

the

walls

of

the

contailrer

the

molecules

move

faster

and

hit

each other

harder

and

more

often

the

molecules

move

fastcr

and

hi t

the

walls

of

the

containcr

rvith

greater

orce

and

witlr

greater

ic-

quency

the

molecules

exParrd

and

Push

harder

on

thc

walls of

tltc

cort-

tainer

/.zii3

-

-

-

E-/

=?/

Ice

wrapped n

copper

gauze

(D)

GO

ON

TO

TFIE

NEXT

PACE

8/18/2019 cxc2002p1-1

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30.

- 7

The

figure

abovc

shows

thc

profilc of

a

rvatcr

wave'

Using

the

same

scale,

which

diagranr

bclow

rcprcsents

a

\vave

twice

thc

frcqucncy

nd

ral l ' thc

nnr l l l i tudc

n

tl tc

satttc

attk

of

water?

(A)

(B)

(c)

31.

The

sharp

edges

of

shadows

uggest

lrat

light

(A)

has

a wave

nature

(B)

is

a form

of

eltergY

(C}

travels

n

straight

ines

(D).

travels

very

quicklY

Which

of

the ollorving

would

be

nvolved

in

thc

production

[

fringes

n

a

Youttg's

cloublc-sl

t cxpcri l t tctrt?

32.

" 1 .

t i .

. , I I I ,

(A)

(B)

(qD

(D)

Di f { lac t io r t

Refraction

Ir tter fercttce

I

on ly

I l l

only

I

and II I

only

I ,

I I

and II I

GO

ON

'fO

'TI.IE

NEXT

PAGE

8/18/2019 cxc2002p1-1

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- 8 -

is

a

longituctinal

avc,

nnd

tltcrc-

fore

does

not

travel

in

straight

l ines

hasa greater mplitude, tld ltcre-

fore

Passes

around

obstaclcs

wltereas

iglrt

does

tot

^

36 .

has

a

slower

sPeed,

nd

thcrclorc

has

more

ime

to

Pass

rottttd

b-

stacles

han

ight

does

has

a

onger

wavelength,

trd

lterc-

fore

diffracts

around

obstaclcs

more

han

ight

does

For

rvhich

o[

thc

followitrg

does

he-phe-

,ro,n.tro,,

f

rcfraction

offer

att

explana-

t ion?

lr

1-he

pparent ending f a stick n

water

,

11

Swimming

ools

ooking

hallower

than

heY

eallY

are

III .

Thc

landscape

shinttnering'

n

a

hot

daY

(A)

I

and

I

onlY

(B)

I

nnd

ll

onlY

(C)

II

and

UI

onlY

(@

I,

I I

and

l l

A

ray

of

l ight

n

air

strikcs

glnss

lock

at

u,r

ongt"

oiinciclcnce

f

0"'

The

ight

wil l

bc

35.

33.

A

an

X

(o)

(B)

(c)

(D)

undeviatcd

totallY

reflcctcd

rcfractecl

at

90"

to

nolmal

rcfractecl

at

atr

unkltown

attgle

37.

A

virtual

ntage

has

ro

ight

rays

actually

passing

through

t

is

alrvays

nagrrif ied

can

b'e

Projected

ltto

a

scrcell

is

alwaYs

aterallY

nvcrted

38.

@

(D)

(c)

(D)

A

cottvcrgitlg

etts

produccs

an

rnagc

whiclt

is

thc

sarnc

it"

nt

thc

objcct '

I t

is

true

o

say lrat lre

(n)

objcct

is

at

the

principal

focus

(B)

objcct

is

at

infinitY

(C)

image

is

virtual

(@

inrage

s

inverted

II

(A)

$)

(c)

(D)

I only

II

only

I

and

I

onlY

II

and

II

onlY

A

an

Man

X

can

hear

nan

Y

slrouting

ut

lt c

"-not

see

him

mainlY

because

ound

(A)

(B)

(c)

@,

Which

of

the

following

diagrams

bclorv

could

represent iffraction of waterwaves

in

a

ripPle

ank?

Wall

D,,,W

'I 'O

NEX'T

PAGE

8/18/2019 cxc2002p1-1

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- 9

Which

of

the.

ollowing

diagrarns

epre-

sents

he

electric

field

existing

bctwccn

two

oppositely

harged

oint charges?

f f i -

) \ \

_///

\\=-

-/t

l\\-

+ a

o -

\ t'

\\

(-

An

electric

urrent

n

a ntetal

onsists

f' a

flow

of

(A) neutrons

(B)

protons

(p) electrons

(D) ions

Which

of

the ollowing

applianccs

otrlcl

require

he fuse

with

the

argest

ating?

(A) A kettle

marked

I

800

W

120

Y

(B)

A

freezer

marked

360

W 120

V

(C) An

iron

marked

I 200

W 240

V

@@)

A

stove

marked

12 000

W

240

V

42.

Which

of

tlte

ollorving

ormulae

in

which

thc

syrnbols

tave

tleir

usual

nreaning)

s

a

rrrathcntatical

xprcssiott

f Olttn's

Law?

(O) v: IR

( B )

P = V I

(C)

Q=

IT

( D )

E =P T

'fhc

diagrarn

clow

sltows

he

consttuction

of

a

zinc-carbon

ell.

Wlrich

of

thc fol lowing

is

correct?

(6

(B)

43.

(c)

(D)

(,s)

(B)

(c)

Q

is

carbort,

R

is

zi l tc.

I ' is copper oxide, Q is carbon.

R

is iron

and S

is

amltronium

chlo-

ride.

S

is sulphuric

acid

and

P is

manga-

nese

dioxidc.

(D)

40.

44.

Which

of

the ollowing

onccrning

mme-

lcrs

s

corrcct?

Circuit

I ts

rc.sistnttcc

Connection

41.

(o)

(B)

(c)

(D)

Lorv

Lorv

I'Iigh

I-liglt

ln senes

in

parallel

in

parallel

in series

GO

ON

TO

T'IIE

NEXT

PAGE

8/18/2019 cxc2002p1-1

10/12

-

l 0

-

A

student

equires

circuit

o

measure

he

resistance

i

a

resistor.

Which

of

tltc

circuits

below

is

correctly

connected?

Which

ofthe

following

clationships

ivcs

a

cbrrect

alue

or

the

cornbincd

e'sistnttcc

of

resistors

R,,

\,

and

R,

coltltectccl

lt

parallel?

( A )

R r

= R ,

+ R ,

+ R ,

Rr

I t2

R3

(B)

Rr

=

R,

+EFR,

1 l l

(c)

t{'

=il*

&

*

&

l l l l

( g

R r = & * & * o , ,

47.

Which

of

the

following

pairsof

statements

is

truc

for

both

iron

altd

stccl?

It'olt

is

Stecl

(A )

(B)

(s

(D)

easily

does

not

retain

magnetised

tnaglretism

not

casilY

ntagnetiscd

easily

r r r i tgttct isct l

not

casi lY

rrragttct iscd

rctaitrs

ts

nragrtctistn

wcll

rctains

ts

rr tngnctistn

cl l

docs

tot

retain

its

ntagrtctisllt

A

expcrirncltt

was

conducted

using

the

circr,it

diagrams

sltown

above'

The

same

cotnpottcttts

ere

used

and

hc

bulb

was

lit

to

Itonnal

briglrtrress

tt

each

case'

Which

of

thc

follorving

statcntents

would

bc

corrcct?

I .

l 'hc

bulb

is

dcfective'

I I .

- i 'hc

battcry

s

dcfectivc '

' l [ .

' l 'hc

cl iodc s dcfcctivc '

(A) I

onlY

(D

III onl l '

(C)

I

and

I

onlY

(D)

II

and

I I

onlY

45.

(A)

48 .

(o

(D)

CO

ON

TO

TI{E

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PAGE

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