2019_physics_olevel_nov_paper1

Extracted Content: 2019_physics_olevel_nov_paper1

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TT rR Fo Porfrmence Mesurement

ZIMBABWE SCHOOL EXAMINATIONS COUNCIL

General Certificate of Education Ordinary Level

_ PHYSICS
PAPER 1 Multiple Choice 4023/1

NOVEMBER 2
Additional materials: DE? SESSION 1 hour

Multiple Choice answer sheet
Soft clean eraser . : a :
Soft pencil (type B or HB is recommended.) ..
Electronic calculator

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, Cand 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 question paper consists of 18 printed pages and 2 blank pages.

Copyright: Zimbabwe Schoo! Examinations Council, N2019.

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S2IMsEc N2019

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2 i t of a force! Which one has the same unit as momen!

ic _

A force
B momentum
C power

D work

: . . 9
What is the reading shown on the verner callipers /

Luli
30
mm 10 20

8.4 mm
8.6 mm

14.5 mm

vs AO wm PP

15,0 mm

What is the density of a piece of metal which has a mass of 450 g and a volume
of 48 cm?

A 0.1 giem
B 94 g/m
C 402 glen’

D 21600 g/m’

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The graph shows the motion of a car from point A t oC,

30
velocity
(mn/s) 25

20

15

10

WN

0 10 20 30 40
time (s)

Which row best describes the motion of the car?

BC

uniform acceleration

change in acceleration

/C | uniform velocity uniform acceleration

Bez in velocity uniform acceleration

arock falling freely?

Which statement is correct for
A Acceleration is constant.
B Acceleration increases.
C Acceleration decreases.

D Acceleration is zero.

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n the stability of an object?

Which changes result in an increase 1
height of centre of gravity

e area and increased
creased height of ce

ght of centre of gravity

increased bas
ntre of gravity

decreased base atea and in
area and decreased hei

A
B
C increased base
D eased height of centre of gravity

decreased base area and decr

Inertia is
A. resistance to change of state of motion.

B pressure due to change of motion.
C. a force which opposes motion.

D a force which causes motion,
The diagram shows a uniform metre rule in equilibrium.

50cm 60cm 80cm

10 cm

What is the value of X?

A 8N
B 9N
C 16N
D 60N

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Which statement j 1S Corre f Ct for b a ody moyj d? ing inaci nt si a circle at consta: peca :

A. There is no force acting on j
nit.

There is
no
force Producing an accel
eration,

B
C There isa fi i
OIce acting at q tangent t i
() the circle,

her
c
€ 1S ING to ards the centre of the ci
a force act Wi e circle.

The diagram shows a pulley system

80N

120 kg
What is the mechanical advantage of the pulley system?
A 0.067
B_ 0.670
C 1.50
D 15.00

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11.

12.

13.

14.

iplyi and distance?
«a7 ig calculated by multiplying force
Which quantity is ¢

A work

B power

C_ pressure
D momentum

inetic energy whi
Gravitational potential enersy is transformed to kinetic gy when

A. acar is travelling on 4 flat horizontal ground.

B amango falls from a mango tree.
C acaris travelling up 4 hill.

D an object is thrown upwards.

One watt is equivalent to one
A. volt per second.

B_ joule per second.

C_ coulomb per second.

D ampere per second.

Which source of energy is renewable?
A. coal

B tides

C generators

D batteries

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16.

Which factor affects the strength of joints?
A. size of load

B size of contact area

C_ size of materials

D_ size of dowels

What causes the production of soot in a petrol engine?
A. blocked jets

B worn-out jets

C worn out radiator

D_ blocked petrol filter

A compressional force isa
A. rotational force.
B stretching force.
C crushing force.
D

twisting force.

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. ir from a can. oving air f is the effect of rem <=» air removed by vacuum pump

‘The diagram show

18.

™,
™
™
™,

Why does the can crush?

A. The pressure inside the can is greater than outside pressure.
B The pressure inside the can is equal to outside pressure.
C The pressure inside the can is less than outside pressure.

D The pressure inside the pump is equal to the outside pressure.

19. Which row shows what happens to the melting point of ice and the boiling point

of water when the pressure is reduced?

melting point boiling point

[aco [nwa

Cc
}C| decreases decreases
> [eee ass —

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20.

21.

22.

TIS Not used in thermometers?
A Itadheres to glass —

B Ithasa low heat Capacity,

C It does not €Xpand when heated,

D It has unusual behaviour.

What happens to the temperature of a substance during change of state?
it increases

it decreases

it remains constant

95 A we YP

it fluctuates

What increases the loudness of a sound note?
A increase in frequency
B decrease in frequency
C decrease in amplitude

D increase in amplitude

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23,

24,

' “ air to glass,
R V “i i ellin 4 from alr q
{i m ahows a ray of light (ray 3,
The dhagra i t:

esents the refractive index of glass?

Which ratio repr:

A

Which electromagnetic wave is used in data communication?
A X-rays

B infra-red
C ultra-violet
D

microwave

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1}

6 The diagram shows a Tay of white li
ite light passing through a glass prism.

Which component of the light is refracted the most?
A violet

B green
C blue
D

red -

26. ‘ The depolariser used in a dry cell is:
A: ammonium (II) chloride.
— (IV) oxide.

zinc (IJ) sulphate.

zinc (II) chloride.

SA Ww

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12

e diagram S. ows a charged ro f elec! TOscop
27. The di hi hi d id brought close to a go d. lea:
i 4 t
2g)

charged rod

metal cap

The leaf diverges because

A negative charges move from the charged rod to the gold leaf.
B_ negative charges are repelled from the metal cap to the gold leaf.
C positive charges are attracted from the gold leaf to the metal cap.

D positive charges are attracted from the gold leaf to the charged rod.

4092 wn.

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8

The diagram shows a network of resistors,

What is the effective resistance across XY?

A
B
Cc
D

522
5.8 2
622
10.0 2

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29.

- uit consisting ofan LDR and a fixeg
otential divider circ
i ws @ P
The diagram sho
resistor, R-

10V¥

R=2K2

8 KQ

ov

What is the potential at X?
A 2.0V
B 25V
C 5.0V
D 80V

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30.

31.

The diagram shows a three-pin py
Plug,

Y

Y

neutral

neutral

Which one cannot be used for demagnetisation?

A heating
B hammering
C direct current

D alternating current

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32,

33.

34,

e different from direct current generators },,
lug

ar
Alternating current generators

they have

B split rings.
C commutators.
D

slip rings.

Lenz's law states that

‘A. current is proportional to voltage provided temperature remains constant,

B direction of induced emf is such as to oppose. the effect causing it,

C_ induced emfis directly proportional to the rate of change of magnetic flux,

D energy is neither created nor destroyed but changed from one form to another,

Which diagram shows the variation of a.c voltage with time after a full-wave
rectification process? :

ViV
A
t/s
ViIV
B
ts
wv
Cc
t/s
VIV
D
us

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35.

36.

37.

A transformer with an j
nput
has 2 000 turns on the primary 02° of 2 400 V and an output voltage of 240 V

What is the number of tums on the Secondary coil?

10

A
B
C 2160
D 20000

What name is given to the
cathode ray oscilloscope?

process of directing electrons into a fine beam in the
A emission '
B_ acceleration

C collimation

D deflection

The table shows a truth table for a logic gate.

Which logic gate is represented by the truth table?

A OR

B AND
C NOR
D NAND

/1 N2019
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38.

39.

40.

uses 4 Jow-current circuit to switch a high curren

Which electrical component
circuit on or OM

A relay

B. diode

C. thermistor
D_ capacitor

Isotopes of the same element contain the same number of

A. electrons.
B_ electrons and neutrons.
C neutrons and protons.

D neutrons.

What is the half-life of a radioactive source whose count rate falls from 4 000 to

500 in 30 minutes?

A 3.75 minutes

B_ 7.5 minutes :
C 10 minutes

D_ 15 minutes

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