# Physical Sciences Grade 11 P1 Eastern Cape November 2015 QP

> Grade 11 Physical Sciences Paper 1 question paper from the Eastern Cape November 2015 (English), 24 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/gr11-phsc-p1-n15-qp-eng/3e831371-1e1e-4a60-9ca4-f6db56f2092a
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 11
- Document type: Question paper
- Year: 2015
- Exam period: Eastern Cape November
- Paper: 1
- Curriculum: CAPS
- Pages: 24

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## About this document

Physical Sciences · Grade 11 · Eastern Cape November · 2015. Question paper, 24 pages. Read online or download the PDF.

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## Document text

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                             NATIONAL
                        SENIOR CERTIFICATE

                               GRADE 11

                          NOVEMBER 2015

                   PHYSICAL SCIENCES P1

MARKS:   150

TIME:    3 hours

                               *IPHSCE1*

         This question paper consists of 18 pages, including data sheets.

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2                                  PHYSICAL SCIENCES P1                 (EC/NOVEMBER 2015)

INSTRUCTIONS AND INFORMATION

1.     Write your FULL NAME and SURNAME on your ANSWER SHEET or
       ANSWER BOOK.

2.     This question paper consists of THIRTEEN questions. Answer ALL the
       questions.

3.     Start EACH question on a new page in the ANSWER BOOK.

4.     Number the answer correctly according to the numbering system used in this
       question paper.

5.     Leave ONE line between two sub-questions, for example between
       QUESTION 2.1 and QUESTION 2.2.

6.     You may use a non-programmable calculator.

7.     You may use appropriate mathematical instruments.

8.     YOU ARE ADVISED TO USE THE ATTACHED DATA SHEETS.

9.     Show ALL formulae and substitution in ALL calculations.

10.    Round off your FINAL numerical answers to a minimum of TWO decimal
       places.

11.    Give brief motivations, discussions, et cetera where required.

12.    Write neatly and legible.

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(EC/NOVEMBER 2015)                    PHYSICAL SCIENCES P1                              3

QUESTION 1: MULTIPLE CHOICE QUESTIONS

Four options are provided as possible answers to the following questions. Each
question has only ONE correct answer. Write the letter (A–D) next to the question
number (1.1–1.10) on your answer sheet.

1.1 Which of the following is true for the given sketch?

      A       ⃗⃗⃗⃗⃗ + ⃗⃗⃗⃗⃗ = ⃗⃗⃗⃗⃗
      B       ⃗⃗⃗⃗⃗ + ⃗⃗⃗⃗⃗ = ⃗⃗⃗⃗⃗
      C       ⃗⃗⃗⃗⃗ + ⃗⃗⃗⃗⃗ = ⃗⃗⃗⃗⃗
      D       ⃗⃗⃗⃗⃗ + ⃗⃗⃗⃗⃗ + ⃗⃗⃗⃗⃗ = 0                                                     (2)

1.2 Two forces are acting on a block as shown in the diagram. The resultant force in
    the horizontal direction is:

      A       zero
      B       10 N to the right
      C       10 N to the left
      D       20 N to the right                                                             (2)

1.3 Mary has a mass of 50 kg and is standing on a scale in a lift. The reading on the
    scale is 555 N. The lift is …

      A       accelerating upwards.
      B       moving downwards at constant velocity.
      C       moving upwards at a constant velocity.
      D       accelerating downwards.                                                       (2)

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4                                  PHYSICAL SCIENCES P1                   (EC/NOVEMBER 2015)

1.4 Which one of the following is an example of a contact force?

     A       Electrostatic force
     B       Magnetic force
     C       Gravitational force
     D       Frictional force                                                                  (2)

1.5 The diagram below shows water waves that spread out after passing through a
    single slit.

     The wave phenomenon observed after the water waves pass through the slit
     is …

     A    reflection.
     B    diffraction.
     C    dispersion.
     D    total internal reflection.                                                           (2)

1.6 A ray of light moves from glass to air. The angle of incidence in glass is 30° and
    refraction takes place.

     Which combination for speed and frequency of the refracted wave is correct?

            Speed           Frequency
     A      Increases       Remains constant
     B      Decreases       Remains constant
     C      Increases       Increases
     D      Decrease        Increases                                                          (2)

1.7 A central bright band is observed when light of wavelength     passes through a
    single slit of width a.
     Light of wavelength 3 is now used. Which ONE of the following slit widths
     would produce a central bright band of the same broadness?

     A      a
     B      a
     C    a
     D    3a                                                                                   (2)

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(EC/NOVEMBER 2015)               PHYSICAL SCIENCES P1                                    5

1.8    A bar magnet can be moved towards or away from a solenoid. Which ONE
       of the following factors/actions will increase the deviation on the
       galvanometer?

       A     Use a solenoid with a smaller diameter.
       B     Use a solenoid with fewer turns.
       C     Use a weaker magnet.
       D     Move the magnet faster towards and away from the solenoid.                 (2)

1.9    Which one of the following graphs correctly represents the relationship
       between potential difference (V) and current (I) for an ohmic conductor?

       A                   B                   C                   D

                                                                                        (2)

1.10   Each of the four identical resistors is connected to the same emf. Which ONE
       of the following circuits will have the highest resistance?

       A                                       B

       C                                       D

                                                                                         (2)
                                                                                        [20]

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6                                  PHYSICAL SCIENCES P1                        (EC/NOVEMBER 2015)

QUESTION 2 (Start on a new page.)

During a mountain climbing exercise, Ferial, mass 50 kg, is suspended from an
inelastic piece of nylon rope, fixed to a vertical cliff at X on the cliff. She pushes her
legs against the cliff so that they make an angle of 45° with the cliff, as indicated in
figure. The angle that the rope makes with the cliff is 20°.

Point Y is in equilibrium.

2.1 Explain what is meant by Point Y is in equilibrium.                                         (1)

2.2 Draw a FORCE DIAGRAM showing all the forces acting on point Y.                              (3)

2.3 Determine by means of ACCURATE CONSTRUCTION and MEASUREMENT.
    (use the scale 10 mm: 50 N and indicate at least TWO angles):

     2.3.1    The magnitude of the force which the rope exerts on her.

     2.3.2    The magnitude of the force exerted by her legs.                                  (8)
                                                                                              [12]

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(EC/NOVEMBER 2015)                 PHYSICAL SCIENCES P1                                   7

QUESTION 3 (Start on a new page.)

A wooden cabinet of 60 kg rests on the back of a tip-up truck. The back tilts slowly,
until it makes an angle of 30° with the horisontal. The cabinet does NOT move.

3.1 Calculate the magnitude of the frictional force.                                      (3)

3.2 Calculate the coefficient of static friction.                                         (3)

3.3 The angle of 30° is now increased. How will this change affect the following:

      (Write down only INCREASES, DECREASES or REMAINS THE SAME)

      3.3.1    The coefficient in QUESTION 3.2?                                           (1)

      3.3.2    The frictional force? Explain your answer.                                 (3)
                                                                                         [10]

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8                                 PHYSICAL SCIENCES P1                        (EC/NOVEMBER 2015)

QUESTION 4 (Start on a new page.)

A 6 kg block on a horisontal rough surface is joined to a 2 kg block by a light,
inelastic string running over a frictionless pulley. The frictional force between the
6 kg block and the table is 11,76 N. A downwards force of 2 N is applied to the
2 kg block as indicated in the diagram below.

4.1     State Newton’s Second Law of motion in words.                                        (2)

4.2     Draw a free-body diagram showing ALL the forces acting on the 6 kg block.            (4)

4.3     Calculate:

        4.3.1   The magnitude of the acceleration of the 6 kg block.                         (5)

        4.3.2   The magnitude of the tension (T) in the string connecting the two
                blocks.                                                                      (2)

4.4     The rough surface is replaced by a smooth frictionless surface. How will
        this change affect the answer in QUESTION 4.3.1? Write only
        INCREASES, DECREASES or REMAINS THE SAME.                                           (1)
                                                                                           [14]

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(EC/NOVEMBER 2015)               PHYSICAL SCIENCES P1                                     9

QUESTION 5 (Start on a new page.)

A truck is moving at a constant velocity and is suddenly hit from the rear (back) by
a fast-moving bus. A loose-standing crate is placed on the back of the truck and a
man, M, is sitting on the crate.

5.1 In which direction does the man, M, fall?
    Write down only BACKWARDS or FORWARDS.                                               (1)

5.2 State in words Newton’s laws of motion you used to answer QUESTION 5.1.              (2)

5.3 Luxolo and Kay with masses 80 kg and 50 kg respectively are standing on
    roller-skates facing each other. Initially they are at rest. They push against
    each other and both move away in opposite directions. (IGNORE FRICTION)

      5.3.1    How does the force exerted on Kay compare to the force exerted on
               Luxolo?

               Write only GREATER, SMALLER or EQUAL TO.                                  (1)

      5.3.2    Explain how their accelerations compare.                                  (2)
                                                                                         [6]

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10                                PHYSICAL SCIENCES P1                      (EC/NOVEMBER 2015)

QUESTION 6 (Start on a new page.)

NASA fires a space shuttle off the ground and into space. It accelerates from rest
to 160 m.s-1 in the first 400s of its journey. The total mass of the space shuttle and
its fuel tanks is 2 600 tons (2,6 x 106 kg). The space shuttle’s propulsion system
consists of exhaust gases, which are pushed out of an outlet in its base, B.

                                          B

6.1     Name an action-reaction pair of forces acting on the astronaut as the
        space shuttle accelerates upwards.                                                 (2)

6.2     Calculate the resultant force on the space shuttle during the first 400 s of
        its flight.                                                                        (5)

6.3     Give TWO reasons why the space shuttle’s acceleration increases as it
        moves away from the surface of the earth.                                          (2)
                                                                                           [9]

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(EC/NOVEMBER 2015)               PHYSICAL SCIENCES P1                                   11

QUESTION 7 (Start on a new page.)

The diagram below shows the earth (E) and the moon (M) a distance ‘r’ apart.
The dotted line shows the path of the moon’s orbit around the earth.
The mass of the moon (MM) is 7,35 x 1022 kg and the mass of the earth (ME) is
6 x 1024 kg.
The distance r between their centres is 3,84 x 109 m.

7.1     Calculate the gravitational force, FEM, between the moon and the earth when
        their centres are a distance r apart.                                            (4)

7.2     Name Newton’s law that you applied in QUESTION 7.1.                              (1)

7.3     Give a reason why the gravitational force exerted by the earth on the moon
        does not stay constant as the moon orbits the earth.                             (1)

7.4     An asteroid with a mass of ¼ MM moves at a distance of 2r from the centre
        of the earth. Without using any of the values provided, determine the force
        between the earth and the asteroid in terms of FEM.                              (3)
                                                                                         [9]

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12                               PHYSICAL SCIENCES P1                     (EC/NOVEMBER 2015)

QUESTION 8 (Start on a new page.)

Learners passed light from a ray box through a rectangular glass block to verify
Snell’s law. The results obtained are used to draw the graph below.

8.1     Write down the independent variable.                                                   (1)

8.2     Write down the variable that must be controlled.                                       (1)

8.3     Write down the conclusion that can be obtained from the graph.                         (2)

8.4     USE THE GRAPH to determine the refraction index of the glass block.                    (4)
                                                                                               [8]

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(EC/NOVEMBER 2015)                PHYSICAL SCIENCES P1                                    13

QUESTION 9 (Start on a new page.)

A diamond glitters in light because of its high refraction index of 2,42 and the small
critical angle of the diamond-air boundary.

9.1 Calculate the critical angle of a diamond-air interface.
    Take the refraction index of air as 1.                                                 (4)

9.2 The angle of incidence of light at the diamond-air interface is increased to 30°.
    Redraw the diagram and complete the path of ray of light.

                                                                                           (2)

9.3 Name the phenomenon that will now be observed at the diamond-air interface.            (1)

9.4 What are the TWO CONDITIONS that are necessary for the phenomenon in
    QUESTION 9.3 to happen?                                                                (2)

9.5 Name the medical instrument used to examine internal parts of the body that
    makes use of the phenomenon in QUESTION 9.3.                                           (1)
                                                                                          [10]

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14                               PHYSICAL SCIENCES P1                    (EC/NOVEMBER 2015)

QUESTION 10 (Start on a new page.)

Learners pass a green light with wavelength 534 nm through a single slit of width
1,8 x 10-4 m and shines it on a screen.
They set up the apparatus as shown in the diagram below.

10.1   Define the term monochromatic light.                                             (1)

10.2   Draw the observed pattern and indicate the positions of constructive and
       destructive interferences.                                                       (4)

10.3   How will the broadness of the central band change if …

       (Write only INCREASES, DECREASES or REMAINS THE SAME)

       10.3.1   the green light is replaced by a red light?                             (1)

       10.3.2   the slit width is smaller?

                Explain your answer.                                                    (2)
                                                                                        [8]

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(EC/NOVEMBER 2015)                    PHYSICAL SCIENCES P1                                 15

QUESTION 11 (Start on a new page.)

Two charges P and Q with charges +4 nC and -2 nC respectively, are placed
8 cm apart. A point charge X is placed 2 cm from Q as shown in the sketch below.

11.1    Define the term electric field at a point.                                        (2)

11.2    Draw the electric field pattern between two oppositely charged particles.         (3)

11.3    Calculate the net electric field strength at point X due to P and Q.              (7)

11.4    Calculate the magnitude and direction of the electrostatic force on an
        electron if it is placed at point X.                                             (3)
                                                                                        [15]

QUESTION 12 (Start on a new page.)

A single circular loop of wire, 12 cm in diameter, is placed in a 0,6 T magnetic
field. It is removed from the magnetic field in 0,04 s.

12.1    Calculate:

        12.1.1       The flux which is linked to this coil.                               (4)

        12.1.2       The average induced emf.                                             (4)

12.2    How does the emf change if …

        (Write only INCREASES, DECREASES or REMAINS THE SAME)

        12.2.1       the magnetic field strength changes to 0,5 T?                        (1)

        12.2.2       the coil is removed from the field in 0,02 s?                       (1)
                                                                                        [10]

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16                                PHYSICAL SCIENCES P1                        (EC/NOVEMBER 2015)

QUESTION 13 (Start on a new page.)

In the circuit below, the resistance of the battery, ammeter and connecting wires
can be ignored.

       The power of the 8 Ω resistor is 0,5 W.

13.1   Calculate the reading on the:

       13.1.1   voltmeter (V)                                                              (8)

       13.1.2   ammeter (A)                                                                (4)

13.2   A television is labelled: 240 V; 750 W.

       13.2.1   Calculate the resistance of the television’s resistor.                     (4)

       13.2.2   Calculate the costs of using the television for 6 hours if electricity
                costs R1,04 per kWh.                                                       (3)
                                                                                          [19]

                                                                              TOTAL:      150

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(EC/NOVEMBER 2015)                  PHYSICAL SCIENCES P1                                     17

               DATA FOR PHYSICAL SCIENCES GRADE 11
            GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 11
               PAPER 1 (PHYSICS) / VRAESTEL 1 (FISIKA)

TABLE 1: PHYSICAL CONSTANTS
TABEL 1: FISIESE KONSTANTES

         NAME/NAAM                      SYMBOL/SIMBOOL              VALUE/WAARDE
Acceleration due to gravity
                                                 g                        9,8 m.s-2
Swaartekragversnelling
Universal Gravitational constant
                                                G                   6,67 x 10-11 N.m².kg-2
Swaartekragkonstante
Coulomb’s constant
                                                 k                   9,0 x 109 N.m².C-2
Coulomb se konstante
Speed of light in a vacuum
                                                 c                     3,0 x 108 m.s-1
Spoed van lig in ‘n vakuum
Charge on electron
                                                e-                      -1,6 x 10-19 C
Lading op elektron
Electron mass
                                                me                     9,11 x 10-31 kg
Electronmassa
Charge on electron
                                                e-                      -1,6 x 10-19 C
Lading op elektron
Radius of earth
                                                RE                      6,38 x 106 m
Radius van aarde
Mass of earth
                                                Mg                     5,98 x 1024 kg
Massa van aarde

TABLE 2: FORMULAE/TABEL 2: FORMULES

MOTION/BEWEGING

vf = vi + a∆t                                  ∆x = vi ∆t + ½a∆t²
                                                     vf + vi ∆t
vf²= vi ²+ 2a∆x or/of vf²= vi ²+ 2a∆x          ∆x =       2

FORCE/KRAG

Fnet = ma                                      w = mg
                                               fs(max) = μsN
fk = μkN

WAVES, SOUND AND LIGHT/GOLWE, KLANK EN LIG

n1 sin θ1 = n2 sin θ2

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18                                 PHYSICAL SCIENCES P1                           (EC/NOVEMBER 2015)

ELECTROSTATICS/ELEKTROSTATIKA

F=                   (k = 9,0 x 109 N.m².C-²)   E=

E=                   (k = 9,0 x 109 N.m².C-²)   E=

ELECTROMAGNETISM/ELEKTROMAGNETISME

Φ = BA cos θ                                    ɛ = - N ∆Φ
                                                         ∆t

CURRENT ELECTRICITY/STROOMELEKTRISITEIT

R=                                              R = R1 + R2 + ......
I=                                                =        +    +      + ......

W = Vq                                          P=
W = VI∆t
                                                P = VI
W = I² R ∆t
                                                P = I² R
W = V² ∆t
     R                                          P = V²
                                                    R

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