6032q01

Extracted Content: 6032q01

Page 1

Extracted Text

For Perfo

ZIMBABWE SCHOOL EXAMINATIONS COUNCIL

General Certificate of Education Advanced Level

PHYSICS 6032/1

PAPER 1 Multiple Choice

Specimen Paper 1 hour

Additional materials:
Multiple Choice answer sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)
Electronic calculator and/or Mathematical tables

TIME 1 hour

INSTRUCTIONS TO CANDIDATES

Do not open this booklet until you are told to do so.

Write your name, Centre number and candidate number on the answer sheet in the spaces
provided unless this has already been done for you.

There are forty questions in this paper. Answer all questions. For each question there are
four possible answers, A, B,C and D. Choose the one you consider correct and record your
choice

in soft pencil on the separate answer sheet.

Read very carefully the instructions on the answer sheet.

INFORMATION FOR CANDIDATES

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.

Any rough working should be done in this booklet.

This specimen consists of 15 printed pages and 1 blank page.
Copyright: Zimbabwe School Examinations Council, Specimen paper.

©ZIMSEC Specimen paper [Turn over

---

Page 2

Extracted Text

DATA speed of light in free c =3.00 x 10®ms~? space permeability of free uy =4nx 107-7 Hm space

permittivity of free space

&) =8.85x 10712 Fm (1/4ey =
8.99 x 10° mF~*)

elementary charge

e=1.60x10°1°C

the Planck constant

h =6.63 x 10-* Js

unified atomic mass unit

1u=1.66x 10-2” kg

rest mass of electron

m, =9.11 x 10-37 kg

rest mass of proton

Mp = 1.67 x 10-2 kg

molar gas constant

R =8.31 JK-tmol

the Avogadro constant

N, =6.02 x 102%mol“?

the Boltzmann constant

k=1.38 x 10-23 JK!

gravitational constant

G =6.67 x 10-11Nm2kg~2

acceleration of free fall

g =9.81 ms~?

6032/1 Specimen paper

---

Page 3

Extracted Text

FORMULAE

uniformly accelerated motion
v? =u? +2as
work done on/by a gas
gravitational potential
hydrostatic pressure

pressure of an ideal gas

simple harmonic motion

velocity of particle in s.h.m.

s =ut + “at?

Vv =U, COS wt

v = tw GF ==)

Doppler effect

Attenuation of xrays
electric potential

capacitors in series
capacitors in parallel
energy of charged capacitor

electric current
resistors in series

resistors in parallel
Hall voltage

alternating current/voltage

radioactive decay

decay constant

f, = fsv
0 vt Vs
I=I,e-%*
__2
A4Eeor

LC =1C, +1/C, +...

C=C, +, +...
1
W=5QV
I= Anvg

R=R, +R, +...

WR =1/R, +R, +...

_ BI

Hog

x =X, sinwt
xX =X, exp(-At)

_ 0,693
tt

2

A

6032/1 Specimen paper

[Turn over

---

Page 4

Extracted Text

4

The pressure, P of an ideal gas in a sealed container is given by:
P=ip<C?*>,
where p is density and C is the speed of gas molecules.

If the percentage uncertainty in the mean square speed is 0.6%, what is the percentage
uncertainty in p?

A 0.30%
B 0.36%
Cc 0.60%
D 1.20%

A ball is dropped from a tall building and is allowed to fall freely. Which graph shows how
the acceleration, a varies with time, t?

A . B
a/ms@ a/ms 2
a a
t t
Cc D
a/ms”2 A alms
a
po po
t/s t/s
-a

6032/1 Specimen paper

---

Page 5

Extracted Text

A train is travelling at a speed of 30ms" along a straight path. A person who is in the train walks along the passage towards the rear of the train at a speed of 2ms" relative to the train. What is the boy’s speed relative to the earth?

A 15ms!
B 28ms!
C 32ms!
D 60ms!

A tennis ball of mass 45g was struck by a racket and moved off with a velocity of 12ms". It
then hit the surface and re-bounced as in the diagram.

a 12ms !

—O

™TTITTT/T//

If it was in contact with the surface for 15ms, what is the fore exerted by
the surface on the ball?

A 31N
B 36N
Cc 62N
D 72N

6032/1 Specimen paper

[Turn over

---

Page 6

Extracted Text

6 5 Which graph shows a particle that has attained terminal velocity?

A B

1

v/ms v/ms

v/ms v/ms

>

t/s t/s

6 During the launch of a rocket, it produced propellant gases at a rate of 1000kgs'! so that a
speed of 45km/s is attained.

What is the thrust of the rocket at that speed?

A 45 x 10°N
B 45 x 10°N
Cc 45 x 10°N
D 45 x 10’N

6032/1 Specimen paper

---

Page 7

Extracted Text

7

7 Which graph shows the variation of gravitational potential energy, Ep, with height, h, fora
stone thrown vertically upwards?

A B
NX | >
>
h h
c D
| (\ hy
h h-

8 A bob of mass 2M is whirled in a horizontal circle of radius, r with a constant angular speed
ho.

What is the work done by the body in one revolution?

A zero

B % Mra?
Cc Mro?

D 2n Mrw?

9 Which of the following is a characteristic of an orbiting geostationary satellite?

same acceleration as the earth

same radius of rotation as that of the earth
same speed as the earth

same period as the earth

GTOnmeF

6032/1 Specimen paper

[Turn over

---

Page 8

Extracted Text

MI ALITLLLLL LL.

8

10 The diagram shows Barton’s pendulums used to investigate forced vibrations.

11

12

13

Common Support

Driver Pendulum being
penawum . forced to vibrate
eN

Which statement is not correct at resonance?

A The amplitude of vibration of N depends on the frequency of the driver pendulum.

B N vibrates at the same frequency as the driver pendulum.
C The phase difference N and the driver pendulum is zero.
D N and the driver pendulum will have some amplitude.

When a particle performs simple harmonic motion the velocity leads the displacement by a
phase angle of

Tw
A
Bog
C 3m

4
D T

The buzz of a bee is caused by Oscillations of the insect’s wings at a frequency of 75Hz.
The amplitude of the oscillation of the tip of a bee’s wing is 1,0 cm. What is the maximum
speed of the tip of the wing? (Assume the oscillations are simple harmonic).

A 0. 047 ms!

B 0.47 ms!
C 47 ms!
D 47 ms!

The length of a tube is adjusted until the sound wave set up in it is loudest.
What is the nature of the sound wave in the tube?

A Transverse and progressive
B Longitudinal and progressive
C Transverse and stationery

D Longitudinal and stationery

6032/1 Specimen paper

---

Page 9

Extracted Text

14

15

16

17

Which scan uses ionising radiation?

A X-ray shadow imaging

B magnetic resonance imaging
C ultrasound B scan

D ultrasound A scan

A parallel beam of white light is incident normally on a diffraction grating. It is noted that
the second-order and third-order spectra partially overlap. Which wavelength in the third-
order spectrum appears at the same angle as the wavelength of 600 nm in the second-order
spectrum?

A 300 nm
B 400 nm
C 600 nm
D 900 nm

The attenuation (absorption) coefficient of bone is 600m"! for x-rays of energy 20KeV.
A beam of such x-rays has an intensity of 20Wm?.

What is the intensity of the beam after passing through a 4.0 mm thickness of bone?

A 0.004 Wm?

B 0.08 Wm?
Cc 1.8Wm?
D 4.0 Wm?

Which one has the lowest energy?

A Infra-red

B microwaves
C Ultra-violet
D X-rays

6032/1 Specimen paper
[Turn over

---

Page 10

Extracted Text

18

19

20

21

10

The diagram shows two waves X and Y drawn to scale.

displacement

wave X

time

wave Y

Wave X has amplitude of 8cm and frequency 100Hz. What are the amplitude and frequency
of wave Y ?

amplitude/cm frequency/Hz
A 2 33
B 2 300
c 4 33
D 4 300

The frequency f of the waves is adjusted until a stationary wave is formed with antinode
nearest the wall at a distance, x from the wall. Which expression gives f in terms of x and
the speed of wave, C?

Son >
M
|

A solid sphere whose charge is distributed uniformly throughout

A is not made of metal.

B has an electric field of zero everywhere inside the sphere.

C has an electric potential of zero in the centre of the sphere.

D does not have a constant electric potential on the surface of the sphere.

How should the filament be modified to make a light bulb brighter at a given voltage?

increase the resistivity only
increase the diameter only
decrease the resistivity only
decrease the diameter only

TFTOnmer

6032/1 Specimen paper

---

Page 11

Extracted Text

22

23

24

11
The resistivity of amaterial 2m in length with a cross-sectional area of 2mm? and resistance
1.6 x 10? Q is

A 1.6x 107 Om.
B 1.6x 10° Qm.
Cc 3.2x 10° OQ m.
D 6.4x 107 Qm.

Which change would increase the value of I; for the circuit shown in the diagram?

Ra2kW

1;

remove R3 and its branch

replace R2 with another 6kQ resistor
put all resistors in series
add on 8kQ resistor in parallel with R2 and R3

GOW e

A helium nucleus, $He, and a lithium nucleus, Li, are accelerated through the same
electric potential difference. The ratio of the resultant kinetic energy of the lithium nucleus
to that of the helium nucleus is

GTOnmeF
nN
wo

6032/1 Specimen paper
[Turn over

---

Page 12

Extracted Text

25

26

27

28

29

12
The diagram shows a 10uF capacitor being charged.

5W
] 10v = 10mF
S °o
The energy stored in the capacitor is
A 100 yy.
B 250 yy.
C 500 yy.
D 1000 uJ.
Which statement is not true about capacitors?
A Capacitors can store charge.
B Capacitors act as a.c. when current passes through.
C Capacitors essentially block d.c. current.
D Capacitors have capacitance values greater than 1F.

If the magnetic flux cuts across 200 turns at a rate of 2Wh/s, the induced voltage according
to Faraday’s Law is

A 100V.
B 200V.
Cc 400V.
D 600V.

Which device does not use electromagnetic induction?

A relays
B transformers
C earphones

D electric bells
The following improves the efficiency of an electrical transformer except

reduced eddy currents.

no moving parts.

small input voltage.

no direct connection between coils.

GTOnmeF

6032/1 Specimen paper

---

Page 13

Extracted Text

30

31

32

33

34

13

If gain without feedback and feedback factor are A and B respectively, then the gain with
negative feedback is

A A/(1-AB).
B A/(1+AB).
Cc (1-AB)/A.
D (1+AB)/A.

Airis trapped in a cylinder by a piston. The pressure of the airis P and the length of the air
column is 20 cm. When the length of the air column is changed to 40cm, the new air
pressure is

A 0.2 P.

B 0.5 P.

C P,

D 2P.

When a solid melts

A heat enters the solid.
B heat leaves the solid.
C the temperature of the solid decreases.
D the temperature of the solid increases.

Why is there no change in temperature when a substance is melting?

A energy is absorbed during melting

B energy is only lost when the temperature is falling

C latent heat is the source of energy lost to the surroundings

D the specific heat capacity of the substance is zero while it is melting

Bernoulli’s equation describes a relationship of

speed, density and flow rate.
pressure, volume and speed.
pressure, volume and density.
pressure, speed and density.

GTOnmeF

6032/1 Specimen paper
[Turn over

---

Page 14

Extracted Text

14

35 The diagram shows a particle of mass m and charge g moving with a velocity v entering a
region of uniform magnetic field B.

What distance from the entrance slit will the particle strike the wall, if the particles remain
the same and the mass-charge ratio is doubled?

A 2d
B d

Cc d/,
D d/,

36 A hydrogen atom is in the ground state when its electron

is in the middle of the atom.
is in the innermost orbit.

has been completely ionised.
has absorbed a photon .

GTOnmeF

6032/1 Specimen paper

---

Page 15

Extracted Text

37

38

39

40

15

The graph shows how the maximum kinetic energy, Ex of emitted photoelectrons varies with

frequency f of incident radiation.

A
E,

The slope of the graph is equal to the

A charge of an electron.

B Planck’s constant.
C work function of emitter.
D wavelength of emitter.

Which is not an advantage of amplitude modulation compared to frequency modulation?

A it produces sound of better quality

B one transmitter covers a greater area
C cheaper radio sets can be used
D more stations are available in any frequency range

The technique of interleaving different signals is called

A regeneration.
B multiplexing.
C attenuation.
D amplification.

Which combination is correct for satellite communication?

Signal power received from earth

A Low
B High
C Low
D High

Signal power transmitted to earth

Low
High
High
Low

6032/1 Specimen paper

---

Page 16

Extracted Text

16 BLANK PAGE

6032/1 Specimen paper

---