cxc physics 1994 - paper1

8/18/2019 cxc Physics 1994 - Paper1

1/10

y

s t 0

The

dl

agram

boyc

ndicates

measurcment

f

,^\

qAD

6.01

m

(B)

6.02

m

(c)

6.locm

(D)

6.ll

crn

'2.

wruchof

hefoltowlnglsNoTtruel

ri;'

r't

''

:.

. r ,

. .

: , ,

_$[_

A

bodycanhavemass

nd

o

wclghr

qD

Tt

Ptfa

of

a

simple endulum

depends

n

h

ma s.

':

:

(C)

A

solid

wtrh

a

rcf

ative

density

f

0.7

will

float

on

water.

(D)

AspringbatanTTnmeasqp,y.v.qtghr

'

.r';

:l',:{i '.,

From

he

equadon,

=

nC,

it

can

Uti

educed

that

I

can

bewritten

s

( A ) l kgms ' r

(B)

I kg

m2

r

(C)

'l

ksl

m

st

@

I k lmtsr

A

simple

endulum

scillates

reely.

Which

.

.

of

hc

ollowlng

emalru

nctrangd

nrough:

out

ts

motion?

a '

(A)

Theporendal

nergy

f rhe

bob

-1F)- Thekineric nergy f rhebob

(jgD

Theperiodic

imeof

he

bob

)))

The

amplirude

f

rhe

swing

Ycrulcr

-rlc

. . l .

avemlercallper

" t l

'

t -

' . )

i - ' 1

i ,

i r .

@

Ionty

(B)

,

., c)

(D)

n

ard

ItI

only

I

rnd

III

only

I,

lI

ard

U

1 . 5 5 3 . '

.

t

155

:

' 0 . 6 5 s ' : ' :' . ' i '

15.5

(A)

A

nrler

.'

(B)

Vemlercalipen,

(Q

Englrcer's

cellpen

''

; @ A illcromercrscrcwruge

The

dme

atcen

or

a

pendulum

osci,lae

0

times

s

155

r. Which

of &c

foilowlrg

lndlcates

{re

rcArency,

f,

urdrfn

e,i,,A,

rcspedively?

-

.

I i

f6)

0.65

(E)-

0.65

(c) lss

(D)

l.i5

7.

,

, t

,

.

.

'

4.

Whichof

he

ollowing

tatemenis

orrld

e

Tnect

about

hepuUey

yst€m

lpwn

n

rbc

diagram

bove?

l.

When

he

effort

moyes

hrotgh

r

dlsarrcc

f

50

crn,

he

oad

mc

es

r

r

di$rncc

of 25

cm.

t,

II.

The

effort

exerted

s

cquat

Ur

hc

lbad.

fil.

The

wo*

dorrc

y

rhe

effort

s

rqual

to_twice

hegain

npotential

rergy

of

the oad.


2/10

' n '

'

: '

t5.

(A)

t

tI

il.

@

(c)

(D)

Thcmomrnfinof A lr thcnme

after otlldci

rs

t

wai

iforp,

the

momennlqof'g

ttrcrmc

rfrcr

collisloii

$

r {*

beforp.

The

otat

mmcrfium

f n

fi n b

'

thc

same

ftcr

colllslon s ll wg

beforc.

(

16.

(D)

&l'?H,

(C)

tI

ud mbrily

(D)

I, tr

and,m

-,

fui lce

ctbe sinks n

UquidA

but

tloats.ln

Llquld

B. Wtrlch f lp following tatem6nts

ls trrue?

The

upthrust

s es tn A

than n B.

Theuphrusts

greater

n

A

thann B.

Thewetgh

of rlr

tce s ess iA

rhiir

ln B.

Thewelght

f thc

ce s

grcater

n

A

than n B.


3/10

J

r

r'.

,

21.

, t .

n.

uI.

j,i

1

".1-1.*11,

rt.

:

. . . .5

.

, , ,^, .p

-

. , . ,

,

whldr of

the

ollowlng

ould

.

tt*;ll

clinlcd

thermomacr?

'

't

r'

1;

f

L't';;

. i

I '

' - i

I

&

(e)

(D)

(A)

@

(c)

(D)

l

onlY

III

onlY

'

:. '

I and

I onlY

I, lI and

tr

It

crn

bc

cset

wlrh

mrgnct.

itcrtt bcnerllisd nbolttngw$er.

I

cen

be

sbrilised

n

rlcohol.

thc

followlng

processcs?

(A)

Dftision

fd) Evrporation

tx-

Convection

(D)

Radi*ion

In

r

Brownian

motion

nvestigatioo'rlth

smoke

cell,

lhe

fast

randorn

motim

of

thc

smokc

articles

s

obscrveil.

his

s

dur:

o

lp

(tel

t)

coilision

f smoke

anicles

ith.air

.

\--l

molecules

(B) bombardmentofonesmokepartlc

by other

smoke

Pardcles

(C)

rcgularvibration

f

tp

rnoktrpard-

cles

(D)

collision

of

tle smoke

Particlt:s

lth

the

walls of

Ote

contalner

r'

Which of

the

following

occun

when

alomr

arrange

iemselves

n a

regularly

rcpcated

:

panem?

Crysullisation

Evaporation

Diffusion

Condensation

TtreS.l.

unit

of

specific

atent

rat

is

T

J

K-I

f

kgt

J

kgt 6't

22.

19.

Boylc'r

[.aw,

Chules'

:w ard

ttp

Prcssurc

Law canbe

combined

d

stated

s

'

'

.'

,

PW=

Corstant

. € .

P .

=

Constant

T.

a

Ef=Congant

;

v

- t

Ilf

=

Constant

L

D

a

20.

The

diagram

elow

sltows

he

hermbstat

n

an

electrlc

ven.

.ll.

9

c)

(D)

(A)

6

AdJ|rrtrble

ecr{v

onneclionr

to

hester

clrcull

24.

i f

.

Brass rpandsmorc hanron whenbcstcd.

To

cut

off

thc

curent

at

s

hiSher

emperat.ulE

it wouldbc

rncessary

o

r

:,

(

tnD

adjust

hescrcw

o lrat

t

ls hlghcr

r--z

than hown

adjust

he

scrcw

o

that

t

is lower

tlan

shown

ralsc

re rimetallic

triP

lncrease

he unent

nthe

heater.clr'

(B)

(c)

(D)

cuit


4/10

, 1

I

"

..+i16,,

'

A

rildcntwlshes

use

olarenergy

o

boil

tl'.

"

Zg.

''

cgtlntherhorresrposlble

mebyprrclni'r,

,tl._

.

j'li."ze.

i . .

, . r .

,

.

''l:';

; i

,

,Vtt

,

i

. . '

t . -

t ,

(c)

(D)

pog

connlntng

hc

egg,

at ld

focd

polnt

of

r

'

I

omclyc

rcflector. Whlch

of

thc

followlng

mrblnations

of

surfaces

houldrhe

tudcnt

dtoose?

A

rhinywhltc or

urd

r dutt

black'

re0ector

A dull

Hack

pot

and

a

shiny

wtrltc

rclleaor

A

dull white

pot

and

a

striny

black

rcllegor

A

rhiny

black

pot

and

r

dull

whltc

rcfleclor

Fmm

he isflrceDent-dme

rrph

f r

tnnr-

verse

wave

tpwn bove,

he

freguory

of

the

wave

s

,

l

0.1 lz

A2Hz

0.{ IIz

5.0llz

The amplihrdef the waveon

above

s

rcpresented

y

Anectro

sqrlaerthan

heoriginal

ount

hat

produced

t

Thls

strows

hat,

ompared

o

he

original

sound,

hc

echohas

smaller

mplitude

shorter

avelength

lower

requency

slower

peed

Dbplrccneat

i ' j

26.

In

rn crpcrimcnt

eslgned

investigah

he

,

,

rcladonshlpbetwcen

hevolume

d

prcssutt'

of r

gas

l

constant

emperature,

he

prcssurc

,

k incrEascd

tcp

by

step.Beforc

eading

he

rcw

volume

of the

gas

afler

eactr

rcssurc

increase,

t ls

advisable

o wait

a minute

r

two

o

allow

, 29 .

"

(A)

(B)

the

pressrrc

o equalize

hroughout

the

gas

thevolume

hange

be

completed

A

gas

s

heated

t

constant

olume

o

lrat U

pressure

ncreases.

hich

f

the

ollowing

s

'

NOT

teason

orthepressurc

ncrcase?

(A)

Molecules

ir

thewalls

of rhe

con-

tainer

arder.

(B)

'

Molecules

ave

morc

requent

olli-

'^

slons

wilh

hewalls.

((C) ) Moleculesavemorcrequenrmlli-

v

sionswith

each

ther.

(D)

Molecules

ave

grcarcr

hange

f

momentum

n

collisions

ith

the

.

walls.

thetraph

27.

TR

QP

sx

ttw

@

(B)

(c)

(D)

A

forchanges

n

atmosphe

icprcssure

fGD

thetemperaturcfthe aso etumo

\/

rcom

emperature

(A)

(B)

6

,Jt

(A)

(B)

/rnN.

\U


5/10

'.

?,'-

(A)

@

(c)

(D)

They

ll

tnnsnlt

cneqgy

rom

he

source

he

sunoundings.

Thcy

arc

dl

examples

f traruveac

- * t " t

i r q ' t i , ; . ' : , . . ; i ; r

, r r ) : . .

.

Ttrey

l

-uSno.pnecrion,,l,ef+

:,;:,

tion

rd

dlfrraction

They

hevc

different

speeds

'

f"'.

"

'-

t

pmpagadon"

: -

3 5 .

r t r . .

, . , t r - ' * - , t t

|gtr.S.

lr

rcn

In

plrmilnu.

Wtrtct,of

bUowtng

rrmcnb

lbou

6c

tnapli

N0Tconecr?

.

. . :

A4|

The

mrgc

s

uprighl

q([}>

Thc

mage

s

rcaL

(C)

Thc

nrge

h

the

samc douras hc

i.'t

..

object

.

(D)

The

tmage

s

ilr

same

ize

rs

rhe

"

object

Whldl

of

rhc

followlng

iaremcnrs

aUut

.

shadows

ould

be

rue?

dadmess

.t'

tt

Anocllpecof

hc

moonomrn

when

. theeanhmovqgnm[rc

rtradow

f

thcmooll.

m

Tbc

brighEtess

t

alt

potnc

n

a

pe_

,

,r

numbn

s

rnt

thc

same.

'

. ' . i ,

;

I

,,,(e)

I

only

(B)

.

II

onty

:.,(9

'-

I

and

II

only

fOD

r,rrardrrr

\-1

'

WhidrofthcollowingisNOTaneramplec,f

the

applicarion

f

toral

ntemal

cflcailn?

(A)

A

rcad

ign

ir

by

ighr

pipes

@

A stick.pp*rlni

b.,,t;ilpracol

in

waer

The

use

f

prisms

n

binoorlan

The

ormadon

f

a

m

hage

n

a

sunn;,

day

32.

Whicb

f

thc

o[owlng

would

hange

hcn

a

wave

s

rcfracrod

t

r

boundary?

I

II.

II.

'

(A)

(B)

@

(D)

Velociry

lVavelength

Frcguery

I

only

III

only

I

and

I

only

I,

lI

and

m

t :

Whlch

of

the

ollowing

tatemcnts'rlre

e?

t.

Lighr

has dual xp,"

'

,iiji-

'

'

36.

tI.

All

elecromaglrctic

aves

rc

uarui-

vers.

lll.

All

electromagneric

ardshl've

lrc

.r

same

pecdn glas.

@

landlloniy

I

and

II

only

II

and

ll

only

I,

n

ard

tn

(c)

(D)

B)

(c)

(D)

'

_-

a. '

co

oN

TO

TIIE

}.IEXT

PAGE


6/10

E

Errtl

r,'

L

i : '1 .

. ,

, .

' . ,

, r . . . '

t , r , ^

.

f

.

' I

'

. l i '

38. WhichofthefollowingdiAnmsfvfbsfclearly '

.-

shows

tre

path

of

r ray

of llght

whenh

strikes

,{.

'

i

plane

minor?

.

r.

:';.1

li

, l ' '

. . 1 :

( D ) M

t

GO ON TO

ilU'

NEXT

i i '

(A)

(B)

\ , /

)1,-

PAGE

, ,l\

' t

I

, . ( .

Thediagrambovernrdnum.tocate)

{ew ::

t

i,,

T

dlpsc

of

the un

hople

vlcwlng'thd

n

t),t

,,rilr',,

from

B

will

see

t

as

; i

,r;,

..1

o

o

o

o

(A)

c)

@

(D)


7/10

Thc diagramaboveshows

he

passage

f

light

hrough rcctangular

las

bloclc Thc

rcfractive

ndex

of

glass

s

gfven

by

(B)

(c)

(D)

/a\

sin

w

v v

smx

@)

tlu

s m z

r r

r l . .

a

' ' ' ' , ; i '

' .

" ' '

"

i

, , ' i

, t ' ' . ' - l { :

43.'

For

whlchof

thc

ollowing

would

oft

norr

N0Tbcused?

r

'i i

(A)

.

Amagrretickeeper

(B)

Thecorc

of an

electromagnet

(C)_ Amagrcticshield

@o

compass

ecdle

'

+4. Whlch

of the

ollowing

quals

kW h?

3.6

U

36U

360U

36mU

45. A cunent,

no*t

for a ime,l,

bctwecn

wl

points

at

a

potcntial

iffercncc

f

Y. Tlrg

power.

,exprdcd

s

equal

ffi

a

40.

(c)

@

(A)

(B)

6

sinw

sin

rln

z

sin

y

lf a

converglng

ens s used s

magntfytng

glass,

he

mageormed

s

i

rcal,

nve ted. im

nished

Fal, errct,

dimlnished

virtud, nveiled,

magni

ied

virtud,ercct,

magnified

In

anelectric

ater

eaterrc

metal

arts,

ot

includinghc

heatercircuit,

xe onneded

eanh y [email protected] casonor hls sO

prcvent short

ircuit

setup

anelectricield

set

up

a

potcnlial

iffercne

betwecn

the

metd

pl,ts

and

earth

ensurcthat

he

mcul

parts

rckept t

the

same

otcntial

searth

4 1 .

(A)

(B)

(c)

IVII

lvl

N

It

GO ON

TO

TI{E

NEXT

PACII

L

(A)

(B)

&

(A)

(B)

@

(D)


8/10

t ,

,

-",

lQ;

'

'

'L ' l

'r y

S i ;

l ' ,

. 4 9 .

- 1 .

Thc

lexible

wire

trotm

n

he

lagra

aborc

ls

rysely

sufirted

tn

ftc

rtrong

nagrrcrl

field.

When

he

wltch,

, r

closed

e

wkc

Inthesimpte

"c.

eneratorshown

bove,

hc

parts

abelled

X

are

'

t J - , .

I

slip dngs

the

curvod

ole

aces

carbon

rushes

the

split-dng

ommuurton

Magnetic

nduction

ccun

when

rNpoleattnacraSpole

t

magnet

s

suspended

nd

olns

n.

Increasing

he esisrance

f the

coil

lncrcasing

he

cunsnt

n

the

oil

trcrcashg

henumbcr

f tums

per

unit

en$h

of tlre

coil

.l

Ptacingr

ofrron

ore

nside

hc

oll

.

- ' - i

.

. t i , . r ,

downwiuds

upwards

- :

towards

henorthpole

towards

he

south

pole

. .

J . r r

; . i .

i : r ; ,

moves

(A)

@

(c)

(D)

' . , ,

6

c)

(c)

(D)

. i ' r ,

r ; r l

"

,

" j .

,

r

/

I

. ,

5 0 .

47.

' . k

The

following

graphs

how

out

,vayg

h

.'

whlctr

he

cunent

n

a

rcsisl rmdy

lrywldr

time.

Whichgraph

BEST

represt,nts

lp

cunent

n

the

rcsistor

when

connccted

r

series ithadiode nd sourccof ltr,madrtr

currcru?

(A)

(B)

Currenl

(el

o

t t. ..\ l l t ' ,

Currenl

(c)

o

4E.

th€N-S

dircction

@)

lron

nails

near

a magnet

ecome

\-/

magneriscd

(D)

anclectroscope

s

charged

Whlclt

of

ttr following

s

NOT

orn of thcways n whlch

lr *rengh

of rhe

magrulc

field

near

solemld

Qong

oil)

carrying

current

u

be

ncrcased?

@

(B)

(c)

(D)

Current

fru

.it;

{' I

iI

;11

(D)

CO

ON

TO

THE

NE)fr

r ACB


9/10

5t .

,

. : , f r : ,

Whlclr

of

rhe

ollowlng

radoc

could

ego--:

.

J3.

6cnt

hc

mpere?

';'$iil:

.

:

-

.{i,'.',

-

, .'

'

, .1

t ' '

. ' '

' ' i

1

Coulomb

Sccond

I I I U g I " i

Volr

(A)

I

onty

(B)

I

and

II

only

_(Q

lland

fionty

@)\ Lnardm

-J

, . . , ' . ' '

Thc

output

ermlnals

f

r slmple

.-c. encrt-.(

r,

tor using rylit-dngoorirmutatolrecon-.,-,

ncced

o

an

oscillosope,

iliusteO

onecrly,

to

show

he

vuiadon

of

ourput

ciltage

tih

time.

Whiclr

of

he ollowlngCiagrami

EST

represcnts

hat

s likely

to

be

seen

on the

oscilloscope

creen?

.r

i

i,r

I

u.

Yoll

Ohm

52.

C6t)

Broivn

W

Rod.'(

(C)

Bluc

(D)

Greca'

. t

I

E,lRrH

Greay'yellow

Groen

Brown

Blue

rl

' . . . ,

(A)

(B)

(D)

ix

(A).

(B)

q

(D)

Whlch

of rhc

ollowlng

fmbols

represenrs

n

atom

f Xcohtaining

2

protoru,

2

elec-

tions

alrd

146

neutrons?

. w

. l

: f e l

i r ' l c r r

I

t4 ^

(B)

'ix

O i x

\lhichof

the ollowing

c.lentiss

iscoverBd

.the

lecUon'l

,/\

(D

JJ.Thompson

(B)

J.

Ctradwick

(C)

N.

Bohr

(D)

E.

Rurhcrford

30.

450

9r

l8f

'

.

.

,

:

WNcfi

oittre

fo[owtnggives

tr

corecr

n_

tcmrdonrl

olour

code

or

Electrlcal

wlringi

LIVE

NEI.ITRAI

'

Blrr

i r

g ; * '

i

-

Orecd)rcllow

Brown

(D)

CO

ON

TO

T}IE

NEXT

PAGE


10/10

. d '

,

iJ

l

, 1 ,

Ttp

dlrgnn

bclow hows

he

stnll

motd of

m

rbm.

Nculron

Which

gf

tlr following

statemenb

{arc

corIBct?

:

I '

t

Ttrc

nass

nucleon)

umbers I l.

il.

.

The

tomic

proton)

umbcrs

5.

IIL

Thc uom

shown

n

the diagntm s

positively

harged.

(A)

I

only

Q)

II

only

{fi

I

and

I

only

-@)'-

I,II and I

(A)

(B)

neutrons

88mma-nys

(c)

(D)

59.

' :

t

n

It .

(A)

#

rl

{r

I l

1 , .

5E. fire

baslc

onstltuents

f rll

maner

rp

6AD

proton$

rubors,

etectrons

lE)-

solids,liqrrids,

ascs

/A.

beu-Panicles

(1P))

dpha-panicles

elemenls,ompourds,

lxturcs

1.

q

8,

T

radiuloq

: ' . i '

.

'

Whlchof

he

ollowing

tatenents

ould

be

corrco?

,

f i ,

Radioacdveecay

s

dependent

ri

conditiors xtemd

n thenucleus.

Radioagive

ccay

s a rarrlompocess

Radioaoiveecay

s

due

O.ctranges

ln thenuclel

f atoms.

.';

'

I and I only ., ,

I and II only

lI and

II

urly

I,ll

ard

UI

t .

cxc physics 1994 - paper1

Documents