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TEST CODE 01238010FORM TP 2017021 JANUARY 20I7

CARIBBEAN EXAMINATIONS COUNCILCARIBBEAN SECONDARY EDUCATION CERTIFICATE@

EXAMINATIONPHYSICS

Paper 01 - General Proficiency

I ltour 15 minutes

READ THE FOLLOWING INSTRUCTIONS CAREFULLY.

l. This test consists of 60 items. You will have I hour and l5 minutes to answer them.

In addition to this test booklet, you should 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 choice is best.

On your answer sheet, find the number which corresponds to your item and shade the space havingthe same letter as the answer you have chosen. Look at the sample item below.

Sample ltem

The SI unit of length is the Sample Answer

2

3

4iEal!!,#i!.rrii

(A) neMon(B) metre(C) kilogram(D) second

@o@@

5.

6.

The best answer to this item is "metre", so (B) has been shaded.

If you want to change your answer, erase it completely before you fill in your new choice.

When you are told to begin, turn the page and work as quickly and as carefully as you can. If you

cannot answer an itent, go on to tlre next one. You may return to that item later.

You may do any rough work in this booklet.

Figures are not necessarily drawn to scale.

You may use a silent, non-progratnrnable calctrlator to answer itenrs. l'*

DO NO'I' 'tUt{N THIS PAC;li tlNTt[, \'()tr :\lLF. TOLI) 1'O I)() St)

7

8

9

17 JANUARY 2017 (a.m.)

( o1lr t'ieltt ,!') lo i ,i i , l ,il'i:, l.ii{rr 'r'^1::_

2-

1.

3.

t0

9

8

4

5.

(A)(B)(c)(D)

How many significant figures are in thequantity 25.92 m32

Item 2 refers to the fpllowing measuringcylinder which is used to determine thevolume of a liquid.

cm3

Which ofthe following instruments is suitablefor measuring the diameter of a human hair?

Thpe measureVemier caliperMetre ruleMicrometer screw gauge

Three irnmiscible liquids B Q and R have

densities which differ. Q is denser than P butless dense than R. Which of the followingdiagrams shows how tlre liquids settle in themeasuring cylinder?

(A)

D-t-

aR=

(B)

(c)

(D)

pIR=a

The mass of an astronaut is 70 kg wherrstarrding orr the mootr. When lre returns toearth his approximate weiglrt will be

l:'F'

(A) 70 kg(B) ,r20 kg((.) 70 N'i\. -i',, \;t r / I r/\r I t

I

2

3

4

(A)(B)(c)(D)

2. The volume of the liquid, in cmr, is

(A) 7.0(B) 7.s(c) 7.8(D) 8.0

In carrying out an experiment to locate areal image using a converging lens, theobject can be placed

I . between the focal point and the lensIl. at the focal point

II I. between the focal point and a pointat twice the focal length

(A)(B)(c)(D)

I onlyll onlyl[[onlyI arrcl [il orrly

Liquid

7

6

5

a=P

R=

R=aP

6.

l

-3-

7, When a force F is applied to a spring oforiginal length L, the new length becomes

L + x. What would be the new length of thetr

spring if a force of f was applied instead?

(A) L+2x(B) 2 (L+ x)(C) L-t x(D) t* +

Ilem 8 refers to the following diagramwhich shows three forces of magnitudesL, M and N, all in the same plane andapplied on a ring.

L

M

Which of the following equations must

be TRUE in order for the ring to remain

stationary?

(A) N2: L2 + M2

(B) N2: L2 - M2

(C) L2: M2 + N2

(D) N:L+M

9. Linear momentum is

Which of the following features must be

present in a stable, well-designed racingcar?

Low centre of gravityNarrow wheelbaseSunroofLong front

Which of the following statementsrepresent ways in which energy may be

used MORE effi ciently and econom ical lyin homes?

10

11.

t2.

II

III.

(A)(B)(c)(D)

(A)(B)(c)(D)

R

N

Washing fewer and larger loads inthe washing machine

Using a solar water heater insteadof an electrical heater

Hanging clothes out to dry in thesun instead of using an electricdryer

I and ll onlyI and III onlyll and III onlyI, II and III

8.

(A)(B)(c)(D)

the product ofmass and accelerationthe product of mass and velocitymeasured in neMon-metresmeasured in kilograrns per metre

When a ball is thrown vertically upwards,'and reaches its maximum height, it has

(A) maximum kinetic energy andmaximum potential energy

(B) maximum kinetic energy andminimum potential energy

(C) maximum potential energy andminimum kinetic energy

(D) minimum kinetic energy andminimum potential energy

iri,:1r:1.!:

iiin

-4-

13.

14.

15.

16.

(A)(B)(c)(D)

A large, heavy parcel is tied with string. It isless painful for a person to pick up the parcelif a cloth is wrapped around the string. Thisis because the cloth

Under what conditions could the followinggas formula be applied to solve problems?

P,V, P,Y,

II

Tr T2

Mass of gas being constant.The temperatures T, and T, must

be given in Kelvin.P, and P, must be measured in mm

of mercury.The units of P, and V, must be the

same as those for P, and Vr.

(A)(B)(c)(D)

I onlyI and IV onlyI, II and IV onlyI, II, III and IV

Wh ich scientist was responsible for arriv ingat the conclusion that measured amountsof electrical and mechanicalenergy can beconverted to proportionate amounts of heatenergy?

(A) Joule(B) Coulomb(C) Rumford(D) Newton

Which of the following methods is theMOST suitable means of heating a brassbob in order to determine its specific heatcapacity by the method of mixtures?

exerts less force on the fingersreduces the tension in the stringmakes the parcel lighterreduces the pressure on the fingers

t7

18.

r9

III

(A)

(B)

(c)

IV.The specific latent heat of vaporization ofwater is2.26 x 106 J kg-r. When 0.01 kgof water is converted into steam it

(A)(B)(c)(D)

(A)(B)(c)(D)

Item 15 refers to the following diagramwhich shows a copper rod being heated.

Which of the following transitions BESTindicates the direction of net energytransfer?

absorbs 2.26 x 104 Igives out 2.26 x 104 Iabsorbs 2.26 x 108 J

gives out 2.26 x 108 J

Y --- X andY---+ ZY --.ZandX---+ZX ---+ Y andY -, ZZ+Y and Y -- X

The heat capacity of a substance is definedas the amourrt of heat energy

(A) the substance can hold(B) I kg of the substance can hold(C) required to change the substance to

another state(D) rreeclecl to raise the tenrperarttrrc ol'

tlrc substarroe bv I cleqlcc

Subjecting it to an open flame forten minutes

Placing it in contact with anelectrical lreater for ten minutes

Placing it in a boiling water bathfor ten minutes

Subjecting it to an infrared bearnflor ten minutes

a'l.

(D)

5

20.

22.

(A)

(B)

(c)

(D)

A student carries out an experiment todetermine the specific heat capacity, c, ofa solid using the electrical method. Whichof the following equations should be used?

ML0" PI

FxDc: MLo

IVt^:" MLo

MLe" IVt

The energy required to change the state ofa substance was determined to be Er. Ifthemass ofthe substance was DOUBLED, thevalue of E, will

(A) be halved(B) be doubled(C) be quadrupled(D) remain constant

The specific latent heat of vaporization ofwater is the energy required to change I kgof water at

The 'glasshouse' effect refers to the glasshouse

acting as a heat trap. This is a direct result of

(A) short wavelength infrared rays

which are unable to penetrate

glass(B) long wavelength infrared rays

which are radiated from the sun

and are unable to penetrate glass

(C) short wavelength infrared rays

which are radiated from the

objects within the glasshouse

and are unable to penetrate glass

(D) long wavelength infrared rays

which are radiated from the

objects within the glasshouse and

are unable to penetrate glass

The specific latent heat of fusion of water is340 k J kg-r . This means that when l0 kg ofwater freezes

23.

24.21.

(A)(B)(c)(D)

34 kJ ofheat is absorbed34 kJ of heat is given out

3 400 kJ ofheat is absorbed3 400 kJ of heat is given out

(A)(B)(c)(D)

0"Ctoiceat0oC99.9 oC to steam at 100.1 'C100 oC to steam at 100 "C0 "C to steam at 100 oC

I

-6-

Item 25 refers to the following graphs (with axes lravirrg the same scales) of two sound waves, P and Q.

DisplacemWave P

Time

Displacemen Wave Q

Time

25. Which of the following statements is true?

(A)(B)(c)(D)

(A)

(B)(c)(D)

*^,

P is louder than Q but Q has a higher pitch.P is louder than Q and also has a lrigher pitch than Q.Q is louder than P but P has a higher pitch.

Q is louder than P and also has a lrigher pitch than P.

Item 26 refers to the following diagram which shows an instantaneous profile of a wave travelling across

iEtorurtu"".

Displacement2cm

Position2cm

cm 40 cm

26. From the infonnation given, the frequency is

l0 Hz20 HzUttkno',vtt

-7 -

Item?l refers to the following diagram whichshows Pam facing a plane mirror which is8.0 m away from her.

f- o.s *

8m

Pam views the image of a vase, which is

0.5 m away from her. How far from Parn is

the image of the vase?

Item 29 refers to the following diagramwhich shows a beam of white light beingdispersed (R - Red, V - Violet) by a prismto form a visible spectrum.

Which of the following features make the

visible spectrum possible?

R

V

29.

27

28.

(A)(B)(c)(D)

I.II.III.

An object is placed at the bottorn of a tank ofwater and viewed vertically from above.

Which of the following would be TRUEof the image of the object?

7.5 m8.5 m

15.0 m15.5 m

It is virtual.It is diminished.It is nearer to the eye than the

object.

llorrlyI and II onlyI and lll onlyIl and ltl only

The colour violet has the shorterwavelength, hence refractsmore than colour red.

The colour red has the longerwavelength, hence refracts less

than colour violet.The colour violet has the longer

wavelength, hence refractsmore than colour red.

The colour red has the shorterwavelength, hence refractsmore than colour violet.

I and II onlyI and IV onlyII and III onlyIII and IV only

It.

III

IV.

(A)(B)(c)(D)

(A)(B)(c)(D) ,^

''.".

.i. \:*:

-8-

Item 30 refers to the following diagram of ariglrt-angled triangular glass prism, ABC.

x

P a

A

The critical angle for glass is 42". X is a rayof light, perpendicularto BC. The ray of lightwill emerge in the direction of

(A)(B)(c)(D)

Which of the following waves requires amed ium of transm ission?

A piece of paper was burnt by adjusting theheight of a converging lens above the paperuntil the mostconcentrated beam ofsunlightwas obtained. The distance between thelens and the paper was l0 cm. What wasthe focal length, in cm, of the lens?

B

33.

34

c

R

(A)(B)(c)(D)

il

III

(A)(B)(c)(D)

5

l0t520

I onlyII onlyI and ll onlyII and lll only

l]lltl iD

s

30

3I.

32

(A)(B)(c)(D)

Which of the following diagrams couldrepresent diffraction of water waves in aripple tank?

I -F-r-P

aR

S

The refractive index ofa transparent mediumwith a critical angle, c, for light travellingfrom the medium to air is

(A)

(B) 90"sln c

(c)

(D)

sin 90"

RadioInfraredLightSound

stlt c

sirr c

I

c

j', ..

-9-

35.

36

PQ

PRPS

QR

(A)(B)(c)(D)

Item 35 refers to the following diagramwhich shows a transverse wave at a particularinstant.

ment

The wavelength of the wave is equal to the

distance

Itern 36 refers to the following diagram whichshows a light ray whiclr is incident at the air-glass interface at an angle of incidence of500.

Air

Glass

lf the critical angle for glass is 45o, tlre liglrtray will be

Which of the following statements is TRUEof a diverging lens?

(A) It is thinner at the centre than atthe edge.

It can form only inverted images.It can form only real images.

It can form only enlarged images.

37

38.

39

40.

(B)(c)(D)

What is the equivalent resistance of the tworesistors shown in the following diagrarn?

Rl

(A)(B)(c)(D)

0.5 c)1.3 C,

6C)8C,

A curent .I flows for a tirne / between twopoirrts at a potential difference of V. Thepower P expended is equal to

(A)(B)(c)(D)

A glass rod is rubbed with a piece of silkand is positively charged. The glass rod

became charged by

(A) losing protorls(B) losing electrons(C) gairring protons(D) gairrirrg electrons

js""

IV/IIVIUIt

500

(A)(B)(c)(D)

reflectedrefractedcl ispersedcl i ffiac ted

.l ; ,'i1'

:iri

-10-

4t Which ofthe following diagrams representsthe electric field existing between twooppositely charged point charges?

(A)

+

(B)

+

(C) +

(D)

+o o-

Item 42 refers to the following diagramwhich shows an electrical circuit with acell and two filament bulbs.

Wh ich ofthe fol Iowing circu its are electrical lythe same as the circuit above?

(A)

(B)

(c)

(D)

The resistance of an IDEAL ammeter isassumed to be

42.

43

(A)(B)(c)(D)

zero0.1 ohrn

I to 2 ohrns

infinite

\f\

-il-

44

45.

(A)(B)(c)

Which of the following is NOT one of theways in which the strength of the magneticfield near a solenoid (long coil) carrying a

current can be increased?

Which of the following diagrams represents

the curent/potential d ifference relationsh i p

for a metallic conductor at a constarrttemperature?

(A)

46.

47

(D)

Increasing the resistance ofthe coilIncreasing the current in the coilIncreasing the number of turns per

unit length of the coilPlacing a soft iron core inside the

coil

V

(B)

V

(c)

V

(D)

V

An ideal transformer has 1200 turns on the

prirnary coil and 600 turrrs on the secondarycoil. lf the voltage across the prirnary is 20

V, the secondary voltage is

Which of the following concerningvoltmeters is correct?

Resistance ofa Voltmeter

How it isConnected

to theComponent

(A) Low In parallel

(B) High ln parallel

(c) Low ln series

(D) High ln series

(r\ )

(Ll)('c)

2VJV

IO V) ii \,'

:1i.'j-l- i

"'.i r:

-12-

Item 48 refers to the following diagram

which shows a cell E, a diode P, and a resistor

R, connected in series.

E

P R

Which of the following graphs BESTillustrates the current through R?

ilL(A)

IIA(B)

IIA

tls

IIA(D)

Which of the following statements about

alternating current is TRUE?

It can be changed into direct currentby a transformer.

It can be rectified by using a

semiconductor diode.

It can be used to recharge a battery.It can be used to transmit electrical

energy because of its highfrequency.

Which of the following statements aboutinsulators is NOT true?

49

50.

51.

(A)

(B)

(c)

(D)

(A)

(B)

(c)(D)

48.

In an insulator all electrons are

bound firmly to their atoms.In an insulator many electrons can

move freely from atom to atom.An insulator can be charged by

rubbing.A good insulator retains its charge

better than a conductor.

(c)

Item 5l refers to the following diagram.

An iron rod, PQ, is placed inside a plasticpipe wound with a coil as shown in tlrediagram and a current is passed. When the

current is switched off, the rod is likely tohave

F.*"1

a

(A)

(B)

(c)(D)

positive charge at P, negative chargeatQ

negative charge at P, positive chargearQ

N po,lg at B S pole at QS pole at P, N lrole at Q

-13-

52

53.

54.

(A)(B)(c)

(D)

(A)

(B)

(c)

(D)

50.

57

(A)(B)(c)(D)

(A)(B)(c)(D)

An electromagnet consists of insulated wirewrapped around an iron core.

It works because

55. The nuclide 23rfTh contains

(A) 90 protons and 234 neutrons(B) 235 protons and 90 neutrons(C) 90 protons and 144 neutrons(D) 144 protons and 90 neutrons

Alpha particles, beta particles and gammarays from a radioactive source are subjectedto a transverse magnetic field. Which ofthem would NOT be deviated from theiroriginal path?

I. Alphall. BetaIII. Camma

The electric power supplied to homes and

factories is alternating current (a.c.) rathertlran direct current (d.c.) because

iron is always magnetizediron is a good electrical conductora magnetic field is produced inside

the coilan electric field is produced inside

the coil

the use of a.c. reduces electricalhazards

the use ofa.c. reduces transmissionlosses

a.c. enables a wider variety ofappliances to be used

a.c. power Jines are less likely tobe struck by lightning than d.c.power lines A radioactive isotope has a half-life of 20

days. How many days will it take for a

given sample to have its activity reducedI

to 7of its initial value?Which of the following would be possiblesymbols for an isotope of a nucliderepresented Oy )Xt

II onlyIII onlyI and II onlyll and lll only

1.2 days60 days80 days

320 days(A) X

X(B)

(c)

A-2

z+2

A

z-2

A-2

z-2X

X

'!','ll'

l:i:t

l':t;*

(D)/l+2

z

a

58.

-14-

Which of the following describes two 60.properties of an a-particle?

(A) No charge, very penetrating(B) Positive charge, very penetrating(C) Negativecharge,notverypenetrating(D) Positive charge, notvery penetrating

Sodium 24decays into Magnesium 24 withthe emission of a B-particle and can berepresented by the following equation.

'rorNo - 'rius *

Which of the following should be placed inthe box to complete the equation?

No radioactive nucleiare present in asampleattimet=0.

Which of the following graphs BESTrepresents the variation with time of thenumber, N, of undecayed nuclei present?

(A)

(B)

(c)

N

\59

0

N

\

0e

-r€(A)

(B)

(c)

(D)

o

0

0

4 N

\He

He

(D)

time

END OF TEST

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IF YOU FINISH IIEIORE TIME IS Cr\LLED, CFIECI( YOUIL WORK ON I'FttS TIIST

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