I nrnx SEAL rrERE I L
2 .
3 . --11 , >1, a trl -ft! FI {> 4 . 5 .TEST
CODE
OO24OI
JLINE 2OO3 C I L
@ o @ @
6 . 7 . 8 . 9 . 1 0 .The best answer to this item is "metre" so answer space (B) has becn shaded.
If you want to change your answer, be sure to erase your old answer completcly and fill in your new choice.
When you are told to begin, turn the page and work as quickly and as carefully as you can. Ifyou cannot answer an item, omit it and go on to the next one. You can come back to the hardcr item Iater. Your score will be the total number of correct answers.
Figures are not necessarily drawn to scale. You may do any rough work in this booklet.
The use of non-programmable calculators is allowed.
This test consists o{'60 iterns. you will have 75 minutes to answcr thcnr.
Do not be concerned that the answer sheet provides spaces for more answers than there are items i n t h i s test.
DO NOT TURN THIS PAGE UNTIL YOU ARIi TOLD TO DO SO. Copyright
002401/F/JtJNE, 2003
@ 2002 Caribbean Examinations Council. All rights reserved.
FORM TP 23II9
C A R I B B E A N E X A M I N A T I O N S C O U N
SECONDARY EDUCATION CERTIFICATE
EXAMINATION
PHYSICS
Paper 01 - General Proficiency I-!nhours
READ THB FOLLOWING DIRECTIONS CAREFULLY In addition to this test booklet, you shourd have an answer sheet.
Each item in this test has four suggested answers lettered (A), (B), (C), (D). Read each item you are about to answer and decide which choicc is best.
On your answer sheet, find the number which corresponds to your item and shade the space having the same letter as the answcr you have chosen. [-ook at the sarnple iteln be low.
Sample Item
The SI unit of length is the (A) newton
(B) metre (C) kilogram (D) second
1 . The unit of electrical resistance may be 4' expressed as ( A ) l o - 1 v A ' ( B ) I Q = 1 A V ( C ) l Q = 1 A V - r ( D ) 1 C l = 1 W A '
Which of the following is NOT a f undamental quantity? (A) TemPerature (B) Heat energY (C) Length (D) Time W h i c h o f t h e f o l l o w i n g i s s u i t a b l e f o r measuring the dianreter of a human hair? (A) TaPe measure
(B) VerniercaliPers
(C) Micrometer screw gauge (D) Metre rule
Three irnmiscible liquids P, Q and R have densities which differ. Q is denscr tha' P but less dense than R' Which of the fohowing diagrams shows how the liquids settle in the measuring cYlinder? 5 . (A)
Its
f a =
l * =
H
l P e
l-R-r
r"=
r'-U
l P =
l - =
l a =
(D)
3. (B) 100 g Figure 1Figure I shows ameasuringcylindercontain-ing a fixed volume of liquid' Figure2 shows a roiid Uody submerged in the liquid' ln each case, the total mass of the container and its contents is indicated. Thedensity of the solid is (A) 0.30 g mL-' ( B ) 0 . 3 3 g m L ' (C) 3.00 g mL' (D) 3.20 gr'J'l 160 g Figure 2
(c)
oo240llF1IUNE
2003
3
-Item 6 refers to the diagram below. 6. When r: 0, the value ofy is
(A) a
(B) S
(C) P
(D) P/R
7.
The diagram above represents a 100 g mass which can be balanced by placing a rrass X at the position shown. If Mass X is to be used to barance thc r00 g, it shourd be
( A ) l e s s t h a n t00 g (B) equal to 100 g
(C) a little greater than I00 g (D) about 200 g
8. W h i c h of the following is NOT true abour the moment of a force?
( A ) I t i s measured i n units c a l l e c l n e w t o n _ metres.
(B) It is thc amount of fbrce necdecl to keep a body turning.
(C) It is the turning effect that a force has when it acts on a body.
(D) It is the product of the force and the p e r p e n d i c u l a r d i s t a n c e o f i t s line of a c t i o n f r o m a point. 9 . A s t a b l e w e l l - d e s i g n e d r a c i n g c a r ln u s t h a v e a ( A ) ( B )
(c)
( D ) l o w centre o f g r a v i t y very large massv e r y h igh d rag (a i r-res i s t a n c c ) long front
Which of the following is NOT a vector quantitY? (A) DisPlacement (B) Acceleration (C) DensitY (D) Momentum
Which ofthe following can be used to find the speed ofan object?
(A) Change in velocity Time taken
(B) Change in displacentent Tinre taken
(C) Distance travelled Time taken
(D) Distance travelled x Tirne taken
When two bodies collide, momentum is conserved' This means that the
(A) kinetic energy before impact is equal to that after imPact
(B) momentumofeach body is unchanged after imPact
(C) algebraic sum ofthe velocities before imPact is equalto the sum of the velocities after imPact
(D) totalmomentum of the bodies before impact is equal to the total momentum
of the bodies after imPact
A b o o k o f w e i g h t 1 2 N i s r e s t i n g o n a t a b l e ' The force that the table exerts on the book is ( A ) 0 N
itj greater than 0 N but less than l2 N
( c )
1 2
N
(D) greater than 12 N
An object is removed frorn the ground and placei on a shelf- Which of its properttes would You exPect to change?
( A ) M a s s ( B ) V o l u m e
(C) Potential energy (D) Kinetic energy
'fhe
kinetic energy of a body of ntass' trr' and velocitY, l', is
(C) tttv'
A liquid is containcd in a beaker' It is truc to saY that tlre Pressure
(A) is greatcst at the bottom of the liquid i"l is grcatest at the surface ofthc liquicl i C j i s t h c s a m e a t a l l l e v e l s i n t h e li q u i d (D) exertcd by the liquid is the same as
atnlosPheric Pressure
Which of the lbllowing units is used to measure the force Pcr unit area on a surface?
(A) The newton (N) (B) The watt (W) ( C ) T h e jo u l e ( J ) (D) The Pascal (Pa) 14. 1 0 . 1 1 . 1 5 . Lnv ( B ) ( A ) n t (D) tttv2 .)
12.
1 6 . 1 1 . 1 3 . 0 0 2 4 0 1 / F / J U N E , 2 0 0 31 8 . W h i c h o f t h e f o l l o w i n g is l o n g i t u d i n a l i n n a t u r e ?
(A) Infrared rays (B) Lightrays (C) Sound waves (D) Water waves W h i c h o f t h e fbllowing i s r e s p o n s i b l e f o r t h e glasshouse effect? 2 2 . S o m e m o l t e n n a p h t h a l e n e a t 1 0 0 ' C i s a l l o w e d t o c o o l d o w n at room temperature. If n a p h t h a l e n e h a s a r n e l t i n g poirrt of 80"C, w h i c h of the following BES1'represents t h c cooling curve?
e/ 0c
100 (A) Eo (B)e/ oc
100 80 1 9 . ( A ) (fJ)(c)
(D)(c)
(D)Thc specific heat capacity of a material is the energy required to
( A ) n r c l t I k g of the material w i t h no change of temperature
(B) changc the ternpcrature of the rnaterial by I K Micror,vaves [Jltraviolet rays Light rays lnfiared rays 'l-/K:0t"C -.273 r/K: gt"c + 273 T/K= 213 jloC 273 ' r/K: Ot"C
c h a n g e I k g of the liquid material t o I k g o f g a s w i t h o u t a change i n
tempcrature
charrge the temperature of I kg of the nraterial bv I K
(A) (B)
(c)
( D )
2 0 . W h i c h ofthe followins is correct?
(c)
2 1 . (D) y'min / m i n /min /min f ) f ) ? 4 0 1 / F / i l r N [ : ' ) ( ) 0 1 G O O N T O T I I E N F , X T P A C [ ,25. When a gas is heated in a closed cotttainer at a constartt volume, the pressure of the g a s r i s e s . W h i c h o f t h e f o l l o w i r r g s t a t e -lnents corlccrn ing this fact is/arc 1'RtJ E'/
23.
'fhe
figtlre above shows a piece of ice wrapped in copper gauze and submerged in a glass test tube of water' 'flte water when heated at the top boils long before the i c e is n r e l t e d ' T h e M A I N r e a s o n j b r this is that
(A) the test tubc is a poor conductor of heat
(B) copper is a good conductor ofheat (C) ice is lcss dense tltan water (D) water is a poor colrductor of heat
24. An electric kettle full of water is plugged into the mains. The process by which heat travels through the watcr is
(A) electrification ( B ) c v a p o r a t i o l l ( C ) c o n v e c t i o n (D) radiation
'fhc
pressrrre rises because the gas molccules strike the walls ltlr thc container with grcater tnotnetltunt' 'I'he
pressure rises because tlre gas m o l e c u l e s n o w c o l l i d c w i t h t h e walls ol'thc contaittcr tnore fie-q u e n t l y .
Thc pre;;sure rises bccause the fbrces betwcen thc gas rnolcculcs are largcr at highcr telllpcraturcs. I o n l y I a n d I I o n l y I I a n d ll l o n l y I , I l a n d Il l I I . I I I .
t.
(A) (B)(c)
(D)26. A flask contairts air undcr pressurt: ' Some of t h c a i r i s lc t o u t s l o w l y o v e r a p c r i o d o f I 0 s ' Whcn the f'lask is clcsccl the
p r e s s u r e o f t h c a i r i n t h e f l a s k w i l l have incrcased
v o l u m e o f a i r i n t h e ll a s k w i l l h a v e dccreased
tenrperature in thc flask will have increased
numberofmolectr les striking the wall per second will llave decreased ( A ) (B)
(c)
(D)/,i.',3
/:;t
- - - t--_
_7
Ice wrapped in coppcr gauze 002401/F/ith-[ 200-i G O O N 1 ' O - f H E N t l x l - P A G I I7
-27.
Displacement
Which of the following statement(s) about the wave shown in the diagrarn above is/are TRUE?
L Points P, Q and R are in phase. I l . P o i n t s S a n d l' a r e out ofphase. III. The wavelength of the wave is thc
distance PR.
Plane water waves which travel fronr deep water to shallow water
(A) are diffracted
(B) increase thcir spcccl
(C) undergo a change in fiequency (D) undcrgo a changc in u,avclength
I
r l \ \ t - - - - t - - t ' 'fhefigure above shows a rvavef'ront abclut to r c a c h a r c f l e c t i r r g s u r l h c c X Y . W h i c h ofthe followingwou Id reprcsent the wavefrorrt after reflection'2 \ - . - - - - t '
29.
30. (A) (B)(c)
(D) I o n l y I I o n l y I a n d ll only I I a n d I I I only 28. (A) (B)(c)
(D) Yx
Y Y X C ,lrl
i l l R, C, R, c, R, c.l l | t l
I t l l l
l l l l i l
'lhediagram above represents a longitudinal wave where, C and R represent compressions and rarefactions respectively. If l" is the wavelength, the distance between C, and It.
is Y (A) (B)
(c)
(D)) x
, l n L 2 , " l ] "2X
002401/F/JtJNE 2003 GO ()N 't'oWhich of the following statements about sound is NOT correct?
(A) Sound is transmitted as trattsverse waves.
(B) Sound niay be produced by vibrat-ing sYstems.
(C) Sound does not travel through a v a c u u m .
(D) Sound travels more slowly than l i g h t .
Which ofthe followingtypes of radiation is responsible for an atom of rf c changing
into an atorn of If Nl (A) cr
(B) p
(c) v
(D) Inliared
The sharp edges of shadows suggest that l i s h t
Which of thc follou'itrg would be truc o{'the image of an objecl placed at the bottom ol' a tank of water and vie*'ed vcllically' li'orrl above'/ I . l t i s v ir t t r a l . I I . I t i s d i n r i n i s h e d . l l l . [ t i s t t c a r c t ' t o t l r c c 1 ' c t h a n t h e ob.icct. ( A ) l o n l Y ( B ) | a n d ll o n l Y ( C ) l a n d ll l o n h ( D ) l l a r r d l l l o r r l l '
Which of thc diagrzrtrls BlrS-f rcprcserrts the passage of a beanr o l-rvh ite I i ght thlotrgh a triangular glass Prisnl'/
35. 3 1 .
32.
33. 36. (A) ( B )(c)
(D)has a wave nature is a form of energY travels in straight lines
travels very quicklY
(c)
The table below lists the refractive indices of four different materials
Material Refiactive Index
A i r 1 . 0
l c e
t . 3
Perspex 1 . 5
D i a m o n d L . q
I n w h i c h m e d i u m w o u l d t h e l i g h t w a v e s have the slowest sPeed?
( A ) A i r ( B ) I c e ( C ) P e r s P c x ( D ) D i a t n o n d 0 0 2 4 0 1 / F / i u N t 2 0 0 3 3 1 .
A
(D)
Ax*--7-\\
' f h e i r n a g e o n t h c t i l r n t l l ' a c i t t t t e r a i s u s u a l l y i n v e r t c d . d i n r i n i s h c d , r e a l i n v e r t e d , d i n r i n i s h c d . v i r t u a l u p r i g h t , d i n r i r r i s h e d . r c a l L r p r i g h t . n r a g t r i l i c c l . r ' c a l G O O N ' l ' O l - l l L . N I - X I l ' u \ C En
(A) L\(
-"L)
iu,
( A ) ( B )(cr)
( D )9 -41. 38. For which of the following object distances
w i l l a c o n v e x le n s o f f o c a l l e n g t h l 8 c m produce a real image?
I . 1 5 c m II. 36 crn III. 54 cm ( A ) I o n l y ( B ) I a n d II o n l y (C) II and III only ( D ) l , I I a n d II I
A plastic rod, P, is rubbed with cloth, Q. P becomes positively charged. This is bccause (A) protons flowcd lionr Q to P
(B) protons flowed from P to Q (C) electrons f-lowed from Q to P (D) clectrons flowed fiom P to Q
Which of the following diagrarns represents the electric field existing between two
oppositely charged point charges?
(C) +
The current in a wire is one ampere if a charge of
(A) l0 coulombs flows through it for l 0 s e c o n d s ( B ) I c o u l o n r b f l o w s t h r o u g h it i n l 0 seconds ( C ) l 0 c o u l o m b s f l o w t h r o u g h it i n I second ( D ) 1 0 0 c o u l o m b s f l o w s t h r o u g h it i n l 0 s e c o n d s
Which of the following forrnulae (in which the symbols have their usual meaning) is a rnathematical expression of Ohm's Law? ( A ) V = l R
( B ) P = V I ( C ) Q = l t ( D ) E = P t
A beam of lightpasses fiom one medium to another of greater refiactive index. Whcn it refracts thc
(A) liequency changes ( B ) w a v e l e n g t h c h a n g e s ( C ) s p c e d in c r c a s e s
(D) bcanr bends away fionr the normal
' f h e
r c f r a c t i v e i n d c x of a transparent m e d i u m w i t h a c r i t i c a l a n g l e , c, for light travclling from thc medium to air is
I
L' 90" s i n c sin 90" s i l r c S I N C42.
39.
(A) 44. (B) ( A ) ( B )o
-+ o
\ F
( D )
4 \
(c)
002401/F/JUNE 2003 ( D )A student requires a circuit to measure the resistance of a resistor. Whichofthecircuits below is correctlY connected?
(c)ffi
When a large current passes through a fusc'. which of the following is the sequence or events?
(A) Wire gets hot -+ wire melts -> current is cut off
(B) Wire gets hot -+ current is cut off -> wire melts
(C) Wire melts -> current is cut off -> wire gets hot
( D ) W i r e n r e l t s - + wirc gets hot '> current is cut ofT
47. 45.
(A) The diagranl above sltows an electrical
circuit with a cell and two filamerrt bulbs' W h i c h o f t h c f o l l o w i n g c i r c u i t s i s e l e c t r i c a l l y the samc as the circuit abovc?
(A) (D) 48.
(D,ffi
t r a n s l o r m c t c a p a c i t o r transistor d i o d e ( A )(ts)
(c)
( D )(8,ffi
(8,il
(c)
f--cl
L
R e c t i f l c a t i o n c a n B E S ' l b e d o n c b y u s i n g a 0 0 2 4 0 1 / F / J U N D 2 0 0 3 C O O N ' I O ' I - I I E N E , X ' | P A G E ,l l -50.
49. Steel is NO'f suitable lor use in an electro_
magnet because it ( A ) (B)
(c)
(D) i s t o o dil'llcult to magnetise retains rnagnetisnr too well loses its nragnetisrn too easily c o n t a i n s t o o r n a n y domainsWh ich ofthc following C'ANNO'l'be deflectcd bv a magnetic fleld? ( A ) A l p h a p a r r i c l e s ( f l ) B e t a p a r t i c l c s (C) Gamnra, rays ( D ) l r l e c t r o n s W h i c h ol-the l b l l o w i n g a r e d e l l n i t i o r r s o l . t h e t c r n r ' h a I l' - l i { c ' o l ' radioactive r r u c l i d c , / l . - l - h c t i n r e t a k c n l b r t h c a c t i v i t y o f a n y g i v c r r s a r n p l c t o fa l l t o h a l l ' i t s o r i g i n a l v a l u c I l . ' l ' h c t i n r e - t a k c r r f b r h a l l ' t h e n u c l e i p r e s e n t in alry g i v e n s a r r r p l c t o decay l l l . F l a l f t h e a v e r a g e n u m b e r o l ' d i s i n t e -g r a t i o n s p e r second ( A ) I a n d ll onl1, a n d I l l o n l y a n d l l l o r r l y l l a n d ll l
Which ofthe lollr)rv ing persons is assttciar.ed w i t l t n u c l e a r e n c r g r , ' ? ( A ) l ' h o m p s o r r ( R ) l l o l r r ( C ) C h a d u ' i c k ( D ) [ ; i n s t e i n
I
\Which ofthe circuits below could procluce the trace on the oscilloscope screen sho'arn in the diagram above when the ends of the resistor are connected to the Y plates?
5 1 . (A) 52. (B) ( B ) I
(c) rr
( D ) I ,(c)
53. (D) C . R . O C.R.O C.R.O C . R . O 0 0 1 4 0 1 / F / J U N E l 0 0 i G O O N - f O l - t l E N E X T P A G I IItem 54 refers to the following diagram ot a simPle a.c. generator'
The parts labellcd X in the diagram are known as the
(A) coil (B) armature ( C ) s l i P rt n g s (D) commutator
Item 55 refers to the following diagram'
W SecondrtrY Coil
Appropriate labels for W and X would be
A conductor, rotating in a uniform mag-netic I'ield, induces maximum instantane-oo,
-"u,t"n,
when the concluctor cuts the magnetic field lines at
( A ) 3 0 o ( B ) 4 5 o
(c)
90"
( D ) 1 8 0 "
The Rutherford mocJel of the atom suggests that an atom consists of a
(A) solid mass of protons. and :t"t-tJ:lt igi nucleus of protons only wtth orbrtrng
electrons
(C) nucleus of equal number's of neutrons and electrons with orbiting protons (D) nucleus of protons and neutrons
with orbiting electrons
According to thc Ruthertord-Bohr model oio n"u,r-ut, stable atorn' if n = number of nelltrons, 12 = number of protons and e
= number of clcctrons in the atom' then fbr all clctnents ( A ) n = e ( B ) P = c ( C ) t t + e = P ( D ) t t + P = c W h i c h o f t h e fo l l o w i n g is N O T a f f e c t e d b y an clectric lield ]
(A) AlPha Plirticlc (B) Beta Particle ( C ) N e u t r o n ( D ) E l e c t r o n J / . 54. 5 9 .
w
(A) steP-down transformer (B) steP-down transformer (C) step-uptransformer (D) steP-uptransformer X a . c . in P u t d . c . tn p u t a . c . in P u t d . c . in P u t oo240ltFIJUNE 2003
- 1 3
-Item 60 refers to the fbllowing diagranr of a coil carrying a current and wrapped around a wooden cylinder.
Y
a
60. Which row of the table bclow shows the magnetic field directions at X. Y andZ2
A
ts
C D <_-_+ ---+ +---++-IF YOU FINISH BEFORE TIME IS CALLED, CHBCK YOUR woRK oN THIS TEST.
