2013 PHYSICS Csec Multiple Choice (1)

.21.

2.

expressed as

A slice of bread is squeezed into a little ball. Which quantity does NOT change?

(A) lC): 1 v.A-l (B) lC,: 1A.v (C) 1C): 1A.V-l (D) lC): 1 wA '

(A) (B) (C) (D)

One gram is equal to

Aboy measured the height of the laboratory table with a metre rule. Which of the following is MOST likely to be correct?

The unit of electrical resistance may be

(A) (B) (C) (D)

5.

10 milligrams

100 milligrams

(A) (B)

milligrams 10 000 milligrams 1 000

(c) (D)

3.

Volume Density

width

0.00895 m 0.0895 m

0.8es ft 8.95 m

When used in front of a unit the prefix 'mega'

means 7.

(A) (B)

1o-3

10-6

strength is less?

1o*3

(D)

An object of mass, m, is altached to a spring balance and its weight, w, recorded. What will be the result if the object is taken to the moon and weighed there where the gravitational field

10*6

(c)

(A) Mass: m;weight greater thanw (B) Mass : m;weight less than w (C) Mass greater than m;weight: w (D) Mass less thanm; weight: w

Item 4 refers to the relationship represented by the line through Q and S in the diagram below.

8.

Which of the following will be constant, if a constant net force is applied to a body?

(A) (B) (C) (D)

a 4.

Mass

When x

:

0, the value

(A) a (B) (C) (D)

S

P

P/R

ofy

is

Velocity Kinetic energy Momentum Acceleration

Item 9 refers to the following diagram which shows a simple extension, x /Force, F graph

10.

The diagrams below, drawn to scale, represent two forces, S and acting at O. In which of the following is the resultant in the direction,

I

for a light spring.

ox? (A)

o

(B)

---

o(

x

75 9.

T

Which of the following statements would be true?

(c)

L

The elastic limit of the spring was

il.

The spring obeyed Hooke's law

III.

over its entire extension. The force per unit extension in the . elastic region was 7.5 N cm-r.

(A) (B)

(c) (D)

exceeded.

x T

I only I and III only II and III only I, II and III

(D)

11.

Which of the following expressions could be used to find the speed

ofan object?

(A)

Change in velocity Time taken

(B)

Change in displacement Time taken

(c)

Distance travelled Time taken

(D)

Distance travelled x Time taken

12.

Which of the following is the unit of

1s.

(c)

kg s-' kg m kg m

(D)

Nm

(A)

s-t s-2

0t

power station uses a source of energy, X. This energy

13. A hydroelectric renewable

the

velocity/time graphs below BEST represents its motion, if air resistance is neglected?

momentum?

(A) (B)

A coconut falls from a tree. Which of

(B)

raises water to the top of a mountain so that

has gravitational potential energy' As the water runs down the mountain, it turns a turbine which converts Y energy into Z energy. Which set of answers for X, Y and Z is correct?

,1

it

0nt (c)

x

Y

,1

Z

(A) (B)

Electrical

potential

kinetic

Solar

kinetic

electrical

(c)

Geothermal

potential

electrical

(D)

Chemical

kinetic

electrical

0t

(D)

,L I

14.

Power can be defined as

(A) (B)

(c) (D)

I

0t

force x distance moved

time work done time work done.x time

16.

Abubble of gas rises to the surface of a soft drink. This is because the

(A) (B)

(c) (D)

upthrust on the bubble is greater than the weight of the bubble upthrust on the bubble is greater

than the weight of water it

displaces weight ofthe water displacedby the bubble is less than the weight of the bubble density of the gas is greater than the density of the drink

-5Item 17 refers to the diagram below which shows two different sized containers, with water at different levels connected by a glass tube and controlled by a tap.

P

17.

When the tap is opened, water

(A) (B)

(c) (D)

18.

will flow from

P to Q

until

the level of Q is at X container P is empty the level of P is at Y the water depths of P and Q are equal

A solid object, X, floats in mercury and sinks in water. A solid object, Y, floats in both mercury and water.

20.

(A) (B) (C) (D)

Which of the following is true about X and Y?

(A) (B)

X is less dense than Y.

(c)

X

(D)

mercury. X is more dense than Y.

X and Y are both denser than water. and Y are both denser than

There are NO attractive forces befween the molecules in a

21.

Apiece of string is tied onto

a small stone and

the stone is then suspended, totally immersed,

in water. The tension in the string will be

(A) (B) (C) (D)

zero equal to the weight of the stone less than the weight of the stone more than the weight of the stone

gas

solid and a liquid

liquid sas

The specific heat capacity of a material is the energy required to

(A) 19.

liquid and

(B) (c) (D)

melt

1

kg of the material with no

change of temperature

change the temperature of the material by 1 K change 1 kg of the liquid material to 1 kg of gas without a change in temperature change the temperature of 1 kg of the material by 1 K

GO ON TO THE NEXT PAGE

.6,,)

Some molten naphthalene at 100 "C is allowed to cool down to room temperature' If naphthalene has a melting point of 80 "C, which of the following graphs BEST represents the cooling curve?

In the pressure law which of the following statements would be true?

I. II. m.

Ratio of Pressure to Kelvin temPerature is constant. Volume is constant. Pressure is constant.

0/oc

(A)

(A) I only (B) III onlY (C) I and II onlY (D) I,II and III 23.

t/min

Which of the following statements conceming the radiation of heat would be true?

I. II.

m.

(B)

Radiation can only take place in a material medium. A good absorber is also a good emitter of radiation.

gl"c

Dark dull surfaces are better (c)

emitters than shinY ones.

(A) (B)

(c) (D)

24.

III only I and II only I and III only II and III only

100 80

t/min

0/"c

(D)

An electric kettle fuIl of water is plugged into the mains. The process by which heat travels through the water is

(A) (B) (C) (D)

100 80

electriflcation convection. evaPoration radiation 26.

100

80

The specific latent heat of vapourization of water is the energy required to change 1 kg of water at

(A) (B) (C) (D)

oC 0 oC to ice at 0 99.9 "C to steam at 100.1 "C 100 oC to steam at 100'C

0 oC to steam at 100 "C

/A^

Tr) TI{F NtrYT p)AGF

-7

27.

-

A metal of mass, z, requires energy, E, to raise its temperature fuom T, to Tr. The specific heat capacity of the metal will be

Item29 refers to the following diagram.

,t:".tm

tnropagation

given by Displacement

(A)

E

*7, (B)

Em

(71-

T2)

29.

Which of the following statements about the wave shown in the diagram above is/are true?

(c)

E m(7, - Tr)

(D)

28.

E m(Tr- T,)

The spreading of a wave into the region

I. II. m.

Points P, Q and R are in phase.

(A) (B) (C) (D)

I only II only I and II only II and III only

Points S and T are out ofphase. The wavelength of the wave is the distance PR.

behind an obstruction is called

(A) (B)

(c) (D)

diffraction refraction superposition interference

30.

If sounds of differing frequencies are played in succession, in which of the following would a change be detected? (Assume amplitude constant.)

(A) (B) (C) (D) 31.

Loudness Speed

Pitch Wavelength

An explosion causes the emission of

the

following types of radiation.

L II. m.

Light Sound Infra-red

Which of these will be received first by a person some distance away from the source?

(A) (B) (C) (D)

I and II only I and III only II and III only

I,II and III GO ON TO THE NEXT PAGE

-832.

Item 35 refers to the following diagram'

Avibrator on a ripple tank sends waves over the water. The vibrator is now adjusted so that the number of waves created each second

is doubled. The waves would now

(A) igi iCl iOi 33,

Aray of light in air strikes a glass block at an angle of incidence of 0'. The light will be

(A) (B) (C) (D) 34.

travel at haif the original speed travel at twice the original speed have twicethe originalwave length have half the original wave length

undeviated totallY reflected refracted at 90o to normal refracted at an unknown angie

In a longitudinal wave, the particles

(A) (B)

remain stationary move forward with the sPeed of the wave

(c)

move backwards and forwards

(D)

parallel to the direction of travel of the wave

move from side to side,

perpendicular to the direction of travel of the wave

35.

The diagram above shows a beam of white iight being dispersed (R-Red, V-Vi9-t:t) 9v " piism to no* u visible spectrum' Which of the followinf makes this Possible?

I.

The colour violet has the shorter

II.

The colour red has the longer

ru. IV.

wavelength, hence refracts more than colour red.

wavelength, hence refracts less than colour violet' The colour violet has the longer wavelength, hence refracts more than colour red' The colour red has the shorter wavelength, hence refracts more than colour violet'

(A) I and II onlY (B) I and IV onlY (C) II and III onlY (D) III and IV onlY

GO ON TO THE NE,XT PAGE

-9Which of the follgwing would be true of the image of an object placed at the bottom of a tank of water and viewed vertically from

39.

Which of the following diagrams represents the magnetic field existing between two opposite magnetic poles?

above?

I. I m.

(A)

It is virnral. It is diminished. It is nearer to the eye than the object.

(A) (B)

(c) (D)

37.

I only I and II only I and III only II and III only

(B)

For which of the following object distances will a convex lens of focal length 18 cm produce a real image?

I. II. ru. (A) (B)

(c) (D)

)l \\-\I----1-/

15 cm

/L-fl\\\/r

36 cm 54 cm

I only I and II only II and III only I, II and III (D)

When a polythene rod is rubbed with a cloth, it becomes

(A)

positively charged by gaining

(B)

negatively charged by gaining

(c)

positively charged by gaining

protons

l/\\

rKE \\/r

electrons electrons

(D)

negatively charged by losing protons

40.

Which of the following relationships between elechical quantities is correct?

(A) V:PI

(B) R:vr

(C)

o=E v

(D) E:vr

GO ON TO THE NEXT PAGE

- 10-

41.

(A) (B) (C) (D) 42.

Which of the following options gives the correct colour code for electrical wiring?

LIVE

NEUTRAL

Brown Red

Blue Blue

Blue

Green/yellow Brown

Brown

Green

45.

I. II.

EARTH

m.

Green/Yellow

Green

a

Fuses

unit

of current? 46.

(A) (B) (C) (D)

Switches Circuit breakers

(A) I only (B) III only (C) II and III onlY (D) I,II and III

Blue

Which of the following could NOT be

In domestic installation systems, which of the following should be placed in the live wire?

WV-'

In which of the following diagrams are resistors P and Q in series with each other and parallel with R?

VW-1 C s-l

*$ao

Cs

A*A

(A)

43.

Which of the following equations CANNOT be used to determine the power dissipated in

R

a resistor?

P

(A)

P:

(B)

P=h

(c)

P:

VI

(D)

,_

R

(B)

I2R

-

R -^/VVW-1 l-.ll/i^-

Lr\MW-J

0

R

I

J

ffi

PR

(c) "---

L-1iyVS-

V'

o

(D)

The refractive index of a transparent medium

with a critical angle, c, for light travelling from the medium to air is

(A) I c 47.

(B)

90' s1n

(c)

(D)

c

sin 90' sln c

sin c

Which of the following equations is NOT correct?

(A) (B)

(c) (D)

1C:lAxls 1V:1Ax1f) 1J:1Cx1V

1W:1Vx1C

,-N

MIIT

TTNVT

DA AC

t1Which of the follou,ing graphs illustrates an ALTERNATING current?

Item 50 refers to the following diagram.

(A)

50.

(B)

Which of the circuits below could produce the voltage-time graph shown in the diagram above when the ends of the resistor are

(A,ffi

connected?

(c)

(D)

(B)

Item 49 refers to the diagram below.

(D)

49.

Two light aluminium spheres, A and B, are suspended by insulating threads. Ifthey come to rest as shown in the diagram, the force keeping them apart is

(A) (B) (C) (D)

gravitational electrostatic magnetic centripetal

GO (-)N TC) TEIF]\iFJaT DA(IE

t2 51.

A conductor, rotating in

a

uniform magnetic

53.

field, induces maximum instantaneous

52.

A wire carrying a current in a magnetic

current when the conductor cuts the magnetic

field may experience a force. Which of the following devices does NOT depend on this

field lines at

force?

(A) (B)

30" 45"

(A) (B)

(c)

90"

(c)

(D)

180'

(D)

Which of the following diagrams is

a

54.

Loudspeaker Electric motor Moving coil galvanometer Electromagnet

Which of the following statements about altemating current is true?

representation ofthe currenVp.d. relationship

for a metallic conductor at a constant (A)

temperature?

(B) (A)

(c) (D)

It

can be rectified by using

a

semiconductor diode. It cari be changed into direct current by a transformer. It can be used to recharge a battery. It can be used to transmit electrical

energy because

of its high

frequency.

55.

The Rutherford model of the atom suggests that an atom consistst of a

(B)

(A) (B)

solid mass ofprotons and electrons

nucleus of protons only with orbiting electrons

(c) (D)

nucleus of equal numbers of neutrons and electrons with orbiting protons nucleus of protons and neutrons with orbiting electrons

(c) 56.

The number ofneutrons present inthe nucleus

of the nuclide

(A) (B)

(c)

(D)

(D)

86

136 222 308

!l'nn

is

1357.

An isotope of zinc has a nuclide which can

59.

be represented as %Zn . The number of electrons in a neutral atom is

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

Which of the following statements about proton is NOT correct?

(A)

It is a hydrogen atom minus an

(B)

It has the same mass as that of

(c)

electron. It has a mass about 2 000 times that of an electron.

electron.

30 34 64 e4

(D) Which ofthe following scientists discovered radium?

(A) (B) (C) (D)

Marie Curie Isaac Newton Albert Einstein J. J. Thompson

a

an

It has a charge equal in size but opposite in sign to that of an electron.

60.

Which ofthe following are deflnitions ofthe term'half-life' gf radioactive nuclide? I.

II.

The time taken for the activity of any given sample to fall to half its original value. The time taken for half the nuclei present in any given sample to decay.

m.

It is half the average nurnber of disintegratiors per second.

(A) (B)

(c) (D)

I and II only I and III only II and III only I, II and III

END OF TEST IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST.