# Physical Sciences Grade 12 P1 NSC June 2013 QP (Eng)

> Grade 12 Physical Sciences Paper 1 question paper from the NSC June 2013 (English), 17 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/physical-science-p1-sg-english-2013-qp/ed268f35-b433-4e08-9d31-c9740a72299f
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 12
- Language: English
- Document type: Question paper
- Year: 2013
- Exam period: NSC June
- Paper: 1
- Curriculum: CAPS
- Pages: 17

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## About this document

Physical Sciences · Grade 12 · NSC June · 2013 · English. Question paper, 17 pages. Read online or download the PDF.

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## Document text

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### Page 1

basic education

Department:
Basic Education
REPUBLIC OF SOUTH AFRICA

SENIOR CERTIFICATE EXAMINATION

PHYSICAL SCIENCE P1
PHYSICS
STANDARD GRADE

2013

MARKS: 150

PHYSICAL SCIENCE SG: Paper 1 :
a042E TIME: 2 hours

30421E

This question paper consists of 12 pages, 2 data sheets and 1 answer sheet.

X@5

tM

Copyright reserved

GAUTENG Please turn over

### Page 2

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Physical Science/SG/P1 2 DBE/2013
SCE

INSTRUCTIONS AND INFORMATION

7 Write your centre number and examination number in the appropriate spaces
on the ANSWER BOOK.

A Answer ALL the questions.

c You may use a non-programmable calculator.

4. You may use appropriate mathematical instruments.

Ey, Data sheets are attached for your use.

6. NOTE: The following circuit diagram symbols are used in this paper:
Resistor: +} instead of —WW\4+-—
Bulb: «+ instead of —QMD—

7. You may forfeit marks if you do not follow instructions.

QUESTION 1

INSTRUCTIONS AND INFORMATION

_ Answer this question on the attached ANSWER SHEET. Write your centre
number and examination number in the appropriate spaces.

_ Various options are given as possible answers to the following questions.
Each question as only ONE answer. Choose the correct or best answer and
make a cross (X) in the block (A—D) next to the question number (1.1—1.15)
on the ANSWER SHEET.

3. Do not make any other marks on the ANSWER SHEET. Any calculations or
writing that may be necessary when answering this question should be done
in the ANSWER BOOK and must be deleted clearly by means of a line drawn
across the page.

4. If more than ONE block is marked per question, no marks will be awarded for
that answer.

PLACE THE COMPLETED ANSWER SHEET INSIDE THE FRONT COVER OF
YOUR ANSWER BOOK.

EXAMPLE:

QUESTION: The symbol for the SI unit of time is ...

whem
3ea°

ANSWER: A;|B

D
Conon reser A A Pesotum oer

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Physical Science/SG/P1 3 DBE/2013
SCE
1.1 Which ONE of the following pairs consist of a vector as well as a scalar
quantity?

A Force and acceleration
B_ Energy and power

C_ Speed and distance
D

Impulse and mass (3)
1.2 A block is being pulled with a force F at an angle o with the horizontal, as
shown below.
F

For which ONE of the following angles, o, will the block experience the
biggest acceleration?

A 0°
B 45°
Cc 60°
D 90° (3)

ae A glass of water is placed on top of a thin piece of cardboard on a smooth
table. The cardboard is jerked (pulled quickly) horizontally to the right and the

glass hardly moves.

(e T

Which ONE of the following is best illustrated by this demonstration?

Conservation of momentum
Conservation of energy

Newton's first law

00 WwW DY

Newton's second law (3)

Cohresaved AN Pease um ov

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Physical Science/SG/P1 4 DBE/2013
SCE
1.4 A bricklayer drops a brick from the top of a building. While it is falling, the

1.5

1.6

acceleration of the brick is ...

A__ independent of the mass of the brick.
B_ directly proportional to the mass of the brick.
C__ inversely proportional to the mass of the brick.
D_ inversely proportional to the product of the mass of the earth and the
mass of the brick. (3)
Consider the following equation:
puny

r2

F

Which ONE of the following statements regarding the above formula is
FALSE?

Ar represents the distance between the centres of m; and mp.

B_ The force F is inversely proportional tor’.

C_ The value of G is less on the moon than on earth.

D_ The force F is directly proportional to the product of m; and mz. (3)

What is the correct SI unit of the expression tat”?

m.s@
m.s

m

is) @ wi) 22

m.s" (3)

CT THis) FANUC AMMT VEATCH A iene

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Physical Science/SG/P1 5 DBE/2013
SCE

1.7 A lift of mass m is moving upwards at constant velocity.

cable

lift

mass
m

What will be the force that the cable exerts on the lift? (Ignore the weight of
the cable.)

A Zero

B 10m

C Smaller than 10m

D_ Greater than 10m (3)

1.8 A trolley, moving with a speed u_ past point P at the top of an inclined plane,
rolls down the plane and moves past point Q at the bottom with speed v.
Ignore friction.

uy,

—_
Q
Which ONE of the following is TRUE?
A Ep at P= Ex at Q
B EpatP>ExatQ
Cc E mechanical at P= E mechanical atQ
D  Enmechanical at P > Emechanical at Q (3)

Conese A YA A Pease tum over

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Physical Science/SG/P1 6 DBE/2013
SCE

1.9 Which ONE of the following combinations of base units represents change in
momentum?

A kg.m.s*
B kg.m2.s*
Cc kg.m?.s?
D kg.m.s™ (3)

1.10 Two trolleys, X and Y, with masses of 2 kg and 4 kg respectively, are both
moving at speed v to the right. Ignore friction.

Y

Xx
Ba

Which ONE of the following is CORRECT regarding the momentum of the two
trolleys?

A px= Py

B px> py

C px<py

D Momentums cannot be determined with the information provided. (3)

1.11 Two large parallel metal plates are oppositely charged by applying a potential
difference across the plates. Which ONE of the following statements
regarding the electric field strength between the plates is CORRECT?

A The electric field strength is the same everywhere.

B_ The electric field strength is greater near the positive plate.
C_ The electric field strength is greater near the negative plate.
D

The electric field strength is a maximum exactly midway between the
plates. (3)

Cony rosared AO A A Pease um over

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Physical Science/SG/P1 7 DBE/2013
SCE
2 Two small identical, positively charged spheres, P and Q, carrying identical

charges, are placed a distance apart. W, X, Y and Z are points in the resultant
electric field formed by P and Q.

°X
P Q
Y: @ eZ t ) WwW

At which point is the electric field strength most likely to be zero?

A W
=
Cc Y
D X (3)
Two identical metal spheres, X and Y, on insulated stands, carry charges of
+8 nC and -4 nC respectively. X and Y are allowed to touch and are then
separated again.
xX Y
+8 nC -4nCc
What is the polarity of the charges on X and Y and the nature of the force that
they experience after they have been separated again?
POLARITY OF CHARGE NATURE OF FORCE
A negative repulsive
B negative attractive
Cc positive repulsive
D positive attractive (3)

Cony rosne A AA Rese um over

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Physical Science/SG/P1 8

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DBE/2013
SCE

1.14 KL and MN are parallel, current-carrying conductors.

K M

[ N

Conductor KL attracts conductor MN because ...

A

B
Cc
D

the electric fields attract each other.

the charged particles moving in the conductors attract each other.
conductor MN is in the electric field of conductor KL.

conductor MN is in the magnetic field of conductor KL (3)

1.15 Which ONE of the following connections of an ammeter and a voltmeter is
CORRECT in order to determine the resistance of a resistor in an electric

circuit?
CONNECTION OF CONNECTION OF
AMMETER VOLTMETER
A in series with resistor in parallel across resistor
B in parallel across resistor in parallel across resistor
Cc in series with resistor in series with resistor
D in parallel across resistor in series with resistor (3)
[45]
Copyright reserved Please turn over

GAUTENG

### Page 9

Physical Science/SG/P1 9 DBE/2013

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SCE

ANSWER QUESTIONS 2-8 IN THE ANSWER BOOK.

INSTRUCTIONS AND INFORMATION

1.

2.

3.

4.

Start EACH question on a NEW page in the ANSWER BOOK.

Leave ONE line between two subquestions, for example between
QUESTION 2.1 and QUESTION 2.2.

Show the formulae and substitutions in ALL calculations.

Number the answers exactly the same as the questions.

QUESTION 2 (START ON A NEW PAGE.)

A crane is used to lift a container of mass 500 kg from a dock onto a ship. The
container must be pulled sideways in order to be positioned above the hold. A man on
the deck of the ship fixes a rope to the container at the same point, O, where a cable is
fixed to the container. He pulls horizontally until the cable makes an angle of 20° with
the vertical. The container is now stationary above the hold.

2.1

2.2

2.3

What is the magnitude of the gravitational force acting on the container?

Draw a labelled triangle of forces (not necessarily to scale) for the forces
acting on point O. Also indicate the size of TWO of the angles.

Determine, either by calculation or by means of an accurate construction
(using a scale where 1 cm represents 500 N), the magnitude of the horizontal
force exerted by the man on the rope, AND the magnitude of the force
exerted by the cable.

(2)

(5)

(7)
[14]

Conyatresene JN A Pose tum over

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Physical Science/SG/P1 10 DBE/2013
SCE

QUESTION 3 (START ON A NEW PAGE.)

A truck travels at an initial speed of 20 m.s™ along a straight horizontal road, and then
accelerates at 2 m.s* for 10 s.

3.1 Calculate the distance which the truck covers while it is accelerating. (4)
3.2 What is the speed of the truck after the 10 s? (4)

After 10 s the truck moves at a constant velocity. The truck driver suddenly sees a
stationary vehicle blocking the road 150 m ahead of him. He brakes nan and
the truck slows down at a constant acceleration of magnitude 6 m.s®

3.3 Will the truck stop before reaching the stationary vehicle? Support your
answer with an appropriate calculation. (6)

[14]
QUESTION 4 (START ON A NEW PAGE.)

Two identical wooden blocks, A and B, each of mass 5 kg and with a string attached to
each, are placed on two horizontal surfaces. The string tied to block Al is pulled with a
force F,, causing the block to accelerate to the right at 2 m. s*. Block B also
accelerates to the right at 2 m.s” ? when a force Fo is applied to the string attached to
it. Block A moves along a frictionless surface, while block B experiences a frictional
force of 3. N.

_ 2 = Z
a=2ms a=2ms
A Fy B Fo
5 kg “ 3N 5 kg :
4.1 Explain briefly what is meant by accelerates at 2 ms”. (2)
4.2 Calculate the magnitude of:
4.2.1 Force F, (3)
4.2.2 Force F2 (3)

Both strings are now cut, so that forces F; and F2 are simultaneously removed from
blocks A and B. Ignore air friction in both cases.

4.3 Describe the motion of block A after the string has been cut. (2)
44 Name a law of physics applicable to the motion of block A and use it to briefly
explain your answer. (3)
45 Describe the motion of block B after the string has been cut. (2)
4.6 Name a law of physics applicable to the motion of block B and use it to briefly
explain your answer. (3)
[18]

Cont reser A A Pease um oer

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Physical Science/SG/P1 11 DBE/2013
SCE

QUESTION 5 (START ON A NEW PAGE.)

A brick of mass 2 kg is dropped vertically onto a block of mass 3 kg, which is moving to
the right at 1,5 m.s” in a straight line along a horizontal track. Ignore friction.

2kg |
1,5ms"
——_—
3 kg
5.1 State the law of conservation of linear momentum in words. (3)
5.2 What is the magnitude of the momentum of the block before the brick falls
onto it? (4)
5.3 Calculate the speed of the block-and-brick combination after the brick landed
on the block. (4)
[11]
QUESTION 6 (START ON A NEW PAGE.)
A pupil accidentally pushes her pencil case, with mass 0,2 kg, off a window sill, which
is 4,05 m above the ground. Ignore friction.
6.1 Calculate the gravitational potential energy of the pencil case relative to the
ground just before it starts to fall. (4)
6.2 Use the law of conservation of mechanical.energy to calculate the speed with
which the pencil case hits the ground. (5)
[9]
QUESTION 7 (START ON A NEW PAGE.)
Two point charges each carry a charge of -3,2 x 10 *C. Their centres are 2 cm apart.
Ignore the effects of gravitational force.
TA Draw a neat sketch of the resultant electric field pattern due to the two point
charges. (4)
7.2 Calculate how many electrons are in excess on a point charge of
-3,2 x 10°C. (2)
ae Determine the magnitude and direction of the force which the one point
charge exerts on the other. (6)
[12]

Conrresaned NN 0 Pease tun or

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Physical Science/SG/P1 12 DBE/2013

SCE

QUESTION 8 (START ON A NEW PAGE.)

The battery in the circuit diagram below has negligible internal resistance.

24V

Oni

©)

6,80

L[ 30 |e

Ss
Switch S is OPEN.
8.1 The emf of the battery is 24 V. State briefly what is meant by this.
8.2 Calculate the reading on the ammeter when switch S is OPEN.
Switch S is now CLOSED.
8.3 What will be the effect on the ammeter reading if switch S is closed? Answer
only INCREASES, DECREASES or REMAINS THE SAME. Explain briefly.
8.4 Calculate the total resistance of the circuit.
8.5 Calculate the reading on the ammeter.
8.6 Calculate the reading on the voltmeter.
8.7 Calculate the current in the 3 Q resistor of the parallel combination.
8.8 Calculate the power output of the resistors connected in parallel.

TOTAL:

Copyatresene A YA 0 A

(3)
(4)

(3)
(4)
(3)
(3)
(3)

(4)
[27]

150

### Page 13

Physical Science/SG/P1
SCE

DATA FOR PHYSICAL SCIENCE

PAPER | (PHYSICS)

Downloaded from hlayiso.com
1

DBE/2013

GEGEWENS VIR NATUUR- EN SKEIKUNDE

VRAESTEL | (FISIKA)

TABLE 1: PHYSICAL CONSTANTS
TABEL 1: FISIESE KONSTANTES

NAME/NAAM SYMBOL/SIMBOOL

VALUE/WAARDE

Acceleration due to gravity
Swaartekragversnelling

10 m.s?

Gravitational constant
Swaartekragkonstante

6,7 x 10°" N.m2.kg?

Charge on electron
Lading van elektron

-1,6 x 107°C

MATHEMATICAL AIDS/WISKUNDIGE HULPMIDDELS
B

A

sinA _ sinB__ sinC

a b c
c? = a? + b* - 2abcosC

Copyright reserved

GAUTENG

Please turn over

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2

Physical Science/SG/P1 DBE/2013
SCE
TABLE 2: FORMULAE
TABEL 2: FORMULES
MOTION/BEWEGING
7 1.2
v = u+at s = ut + Dat

v? = u? +2as

u+V
= t
s=(%")

FORCE/KRAG

Fres = ma

p = mv

_ Smym,
=>?

F
r

F At = Ap = mv-mu

WORK, ENERGY AND POWERIARBEID, ENERGIE EN DRYWING

W = Fs E, = mgh
p= W Ex = tmv?
t 2
ELECTROSTATICS/ELEKTROSTATIKA
w
ze KQiQ, (k=9x10°N.m2.c7) |V = —
r Q
F
Sas W = QEs
q
E= KQ (k=9x10°N.m2.c?) |E = au
E d

CURRENT ELECTRICITY/STROOMELEKTRISITEIT

Q= It emffemk = I(R +r)
R=ntmtyt.. as “ue (k=2x 107 NA)
11°11 vt
—=—t+—4+—-+4.. = Vit = FRt = —
Ron th 5 W = Vit =PRt =)

Vv 2
R= — P=vicPR= ©

Copyright reserved

GAUTENG

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### Page 17

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Physical Science/SG/P1 DBE/2013
SCE

ANSWER SHEET

CENTRE NUMBER:

EXAMINATION NUMBER:

441 A B Cc D
1.2 A B Cc D
3 A B Cc D
1.4 A B Cc D
1.5 A B Cc D
1.6 A B Cc D
a7 A B Cc D
1.8 A B Cc D
1.9 A B Cc D

For the use of the marker
Vir die gebruik van die nasiener

Marks obtained
Punte behaal

Marker's

initials
Uae A 7 c Nasiener

se paraaf
Marker's

1.14 A B e D number

Nasiener

1.15 A B Cc D se nommer

(15x3) [45]

Copa resend A AY AA A

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