# Physical Sciences Grade 10 North West June 2017 Memo (Eng)

> Grade 10 Physical Sciences memorandum from the North West June 2017 (English), 10 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/grade-10-physical-sciences-2017-north-west-june-memorandum/b1cc96c8-5069-4a22-8737-b925ffa83c2a
- Updated: 2026-10-29
- Subject: Physical Sciences
- Grade: Grade 10
- Document type: Memorandum
- Year: 2017
- Exam period: North West June
- Curriculum: CAPS
- Pages: 10

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Physical Sciences · Grade 10 · North West June · 2017. Memorandum, 10 pages. Read online or download the PDF.

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### Page 1

NATIONAL
                     SENIOR CERTIFICATE

                               GRADE 10

            PHYSICAL SCIENCES/FISIESE WETENSKAPPE

                            JUNE/JUNIE 2017
                             MEMORANDUM

TIME/TYD   : 2 HOURS/URE

MARKS/PUNTE: 150

                  This memorandum consists of 8 pages.
                Hierdie memorandum bestaan uit 8 baldsye

### Page 2

Memo: Phy Sci Gr 10                           2                                  NW/June 2017

QUESTION/VRAAG 1

1.1     C                                                                        (2)

1.2     D                                                                        (2)

1.3     B                                                                        (2)

1.4     D                                                                        (2)

1.5     B                                                                        (2)

1.6     C                                                                        (2)

1.7     C                                                                        (2)

1.8     D                                                                        (2)

1.9     C                                                                        (2)

1.10    B                                                                        (2)
                                                                                   [20]

QUESTION /VRAAG 2

2.1     Pure substance: A substance that cannot be separated into simpler
        components by physical methods.  
        Suiwer stof. ‘n Stof wat nie in kleiner komponente d.m.v. fisiese metodes verdeel
        kan word nie                                                            (2)

2.2.1 Homogeneous : Composition is uniform and all components a in
      the same phase. 
      Homogeen:  Die komposisie is uniform en alle komponente is in
      dieselfde fase                                                          (2)
2.2.2 Heterogeneous: Composition is non-uniform and components are easily
      identified. 
      Heterogeen. Die komposisie is nie uniform nie en kan maklik idetifiseer word
                                                                                    (2)

2.3.1   Chlorine Chloor                                                           (1)
2.3.2   17                                                                         (1)
2.3.3   19                                                                        (1)
2.3.4   17                                                                        (1)
2.3.5   K                                                                         (1)
2.3.6   19                                                                        (1)
2.3.7   20                                                                        (1)

Copyright reserved                                                   Please turn over

### Page 3

Memo: Phy Sci Gr 10                             3                               NW/June 2017

2.3.8 19                                                                     (1)
2.4.1 Thermal Conductors: Material that allows heat to pass through easily. 
      Termiese geleiers: Materiaal wat hitte maklik deurlaat                           (2)
      Insulators: Material that does not allow heat to pass through. 
      Isoleerders: Materiaal wat nie hitte deurlaat nie.                    (2)
2.4.2 The base/bottom of the potDie bodem van die pot                       (1)
2.4.3 The handle of the potDie handvatsel van die pot                       (1)
                                                                                  [20]

QUESTION 3 / VRAAG 3

3.1.1 AmoniaAmoniak                                                                    (1)

3.1.2 NH3                                                                       (2)

3.2     Ionic Bonding: The transfer on electrons to form cations and anions that
        attract each other to form a formula unit. 
        Ioniese Binding: Die oordrag van elektrone om katione en anione te vorm
        wat mekaar aantrek om ‘n formule eenheid te vorm                       (2)

3.3.1 Ionic bond Ioniese bindng                                                      (2)

3.3.2
 Criteria for Aufbau diagram:            Mark

 1s with 2 e- with opposite spins         
 1s met 2 e wat teenoorgesteld spin
 2s with 2 e- with opposite spins         
 2s met 2 d wat teenoorgesteld spin
 2px,2py and 2pz each with 2 e- with
 opposite spins                           
 2px,2py en 2pz elk met 2 e wat
 teenoorgesteld spin
 3s with 2 e- with opposite spins         
 3s met 2 e wat teenoorgesteld spin
 3px,3py and 3pz each with 2 e- with
 opposite spins                           
 3px,3py en 3pz elk met 2 e wat
 teenoorgesteld spin

      n=3              3px 3py     3pz
                 3s

      n=2             2px 2py    2pz
Copyright reserved
                2s                                                  Please turn over

      n=1

### Page 4

Memo: Phy Sci Gr 10                           4                                   NW/June 2017

                                                                            (5)

3.3.3 Hund’s Rule: No pairing of electron in P orbital until each orbital has at
      least one electron. 
       Hund se wet:  Geen paring van die elktrone in die P orbitale todat elke orbital
       ten minste een elkektron bevat                                          (3)
       Pauli’s Exclusion Principle: An orbital can accommodate a maximum
       of two electrons with opposite spins. 
       Pauli se uitsluitings beginsel.  Elke orbital kan n maksimum van 2 elektrone
       bevat wat teenoorgesteld spin                                                  (3)

                                                                                    [18]

QUESTION 4 / VRAAG 4

4.1    Transverse Pulse: A pulse in which the particles of the medium moves at
       right angles to the direction of motion of the pulse. 
       Tranversale puls: ‘n Pulse waar die deeltjies van die medium loodreg tot die rigting
       van beweging voortbeweeg                                                (2)

4.2    T (1 wave) = 2s
       T (8 waves) = 8 × 2s 
       T (8 waves) =16 s                                                                  (2)

4.3    T = 2 s                                                                      (1)

4.4      =      = 2m                                                               (2)

4.5    f=    

       f = 
       f = 0,5sec                                                                   (3)

4.6    v=f 
       v = 0,5Hz×2m 
        v = 1 m.s-1                                                                 (3)

Copyright reserved                                                   Please turn over

### Page 5

Memo: Phy Sci Gr 10                          5                                  NW/June 2017

                                                                                  [13]

QUESTION/VRAAG 5

5.1     Principle of the superposition of waves: The algebraic sum of the
        amplitudes of two pulses that occupy the same space at the same time
        OR The addition of the disturbances of the two pulses that occupy the
        same space at the same time. 

        Beginself van die superposisie van golwe: Die algebriese som van die amplitudes
        van twee pulse wat dieselfde ruimte gedurende dieslefde tyd bevat. 
        OF Die som van die versteuring van twee pulse wat dieselfde ruimte in dieslfde tyd
        bevat.                                                                  (2)

5.2.1 Constructive interference  Konstruktiewe interferensie                     (1)
5.2.2 Destructive interference       Destruktiewe interferensie                         (1)

5.3.1

 Criteria for sketch             Mark

 Shape of the resulting wave.
                                 
 Vorm van die golf
 Resulting Amplitude indicated
 as A+B.                          
 Resultante amp aangedui as
 A+B

                                  (3)
5.3.2
 Criteria for sketch             Mark

 Shape of the resulting wave.
                                 
 Vorm van die res golf
 Resulting Amplitude indicated
 as A+ (-B).                      
 Resultante amp aangedui as
 A+B

Copyright reserved                                                  Please turn over

### Page 6

Memo: Phy Sci Gr 10                          6                                  NW/June 2017

                                                                                       (3)

5.4.1 Wave B  Golf B                                                     (1)
5.4.2 Wave B has a high frequency / short wavelength resulting in high
      Note / pitch
      Golf B het ‘n hoë frekwensie/kort golflengte wat verantwoordelik is vir n hoë noot
                                                             (2)

5.5.1 Amplitude.                                                                  (1)

5.5.2

 Criteria for sketch                                              Mark

 Same number of waves (i.e 4 waves)                                 
 Dieselfde hoeveelheid golwe
 Same wavelength (4 units)                                          
 Dieslefde golflengte
 Amplitude is doubled (2 units)                                     
 Die amplitude verdubbel

                                                                                              (3)

5.6     Sonar (Pregnancy)  / Treatment (of Kidney stones) / Diagnosis (Blood flow
        in arteries)    (Any 2)
        Sonar/ Nierstene/Bloedvloei (enige 2)                                    (2)

                                                                                             [19]
QUESTION/VRAAG 6

6.1.1 Over exposure can damage eyes and skin OR Can cause skin cancer.
      (Any ONE) 
        Blootstelling kan die oë of vel beskadig of velkanker veroorsaak (enige 1)            (1)

Copyright reserved                                                  Please turn over

### Page 7

Memo: Phy Sci Gr 10                          7                                  NW/June 2017

6.1.2 Over exposure can lead to cancer or skin damage. 
       Oormatige blootstelling kan tot kanker of velskade lei.                                (1)
6.2    Photon: A packet of energy found in light. 
       ' n Foton: ‘n Pakkie energie                                                     (2)

6.3     Light A: Lig A
        E = h f
        E = 6.63×10-34 J.s × 5, 56×1014Hz
        E = 3, 69 × 10-19 J

       (3)
       Light B: Lig B

                

       E=                      
       E = 5, 1 ×10-19 J                                                                (3)

       3, 69 × 10-19 J < 5, 1 ×10-19 J                                                  (1)

       Therefore, light B has the highest energy
       Dus het lig B die hoogste energie       
       (1)

                                                                                       [12]

QUESTION/VRAAG 7

7.1    (NH4 )2CO3  → CO2 +H2O + 2 NH3
       (5)
7.2    Oxygen + Sulphur dioxide →Sulphur trioxide                                    (3)

       Suurstof + swaeldioksied → Swaeltrioksied
                                                                                         [8]
QUESTION 8

8.1    17oC                                                                            (1)

8.2    1170C                                                                           (1)

8.3     Stays constantBly konstand                                                     (1)

8.4    Its boiling point is greater than 1000C       Die kookpunt is hoër as 1000C
(2)

Copyright reserved                                                  Please turn over

### Page 8

Memo: Phy Sci Gr 10                               8                            NW/June 2017

8.5     Gaseous phase                Gasfase
          (2)

QUESTION/VRAAG 9

9.1.1 Magnetic Field: A region in space where a magnet or ferromagnetic
      material will experience a force (non-contact). 
      Magnetiese veld: ‘n Omgewing in die ruimte waar ‘n magneet of ferromagnteiese
      material ‘n krag sal ervaar                                            (2)

9.1.2 -Some field lines are crossing. 
      -Direction of some field lines moves from the South pole. 
      -Space between field lines at some point of greater field bigger than where
       at point where field is weak. 
      -Party veldlyne kruis        
      -Die rigting van party veldlyne is vanaf die suidpool
      -Die spasie tussenj veldlyne by party punte is groter en lyk dus swakker as punte
      waar die eintlik swakker is                                                 (3)

9.1.3 A Compass. ’n Kompas                                                           (1)

9.1.4

 Criteria for sketch                             Mark

 Direction of lines in at south pole, out at
                                                  
 north pole. Uit Suid en in by Noord
 Correct shape for field pattern as shown.        
 Korrekte vorm vir veldpatrone

                                                                                      (2)

9.2     Earth’s magnetic field offers protection from solar winds (Stream of
        radioactive and charged particles sent into space at high speeds due to
        reaction on the reactions on the sun) 
        Die aarde se magnetise veld beskerm ons van sonwinde (Stroom van radioaktiewe
        en gelaade deeltjies wat vanaf die son teen ‘n hoë spoed na die aarde aankom
                                                                                 (2)

                                                                                  [10]

Copyright reserved                                                 Please turn over

### Page 9

Memo: Phy Sci Gr 10                              9                                 NW/June 2017

QUESTION /VRAAG10

10.1.1      Lost electrons. Elektrone verloor                                              (1)
10.1.2       Object is positively charged showing a deficiency/shortage of
             electrons.
             Voorwerp is positief gelaai  en het dus ‘n tekort aan elektrone              (2)

10.1.3        Q = nqe
              +3.2 × 10-15  = n (1, 6 x 10 – 19) 
               ∴ n = (electrons)                                                           (3)

10.2                           

                                            

                       Qnet = 4.8 x 10-9 C 
                 (3)
10.3        Terminal potential difference: The voltage measured across the
             terminals of the battery when charges are flowing in circuit. 
              Terminale potensiaalverskil; Die volts gemeet oor die terminale van die battery
              wanner lading deur die stroombaan vloei  
         (2)

10.4.1      Q=It
            Q = 1, 5 × 10
            Q = 15 C                                                                      (3)

10.4.2                 

                          
                 R1 = 1. 33 Ω                                                            (3)

 10.4.     OPTION 1                       OPTION 2
 3
           VT=V1 +V2
           ∴ V2= (3-2)                               
            V2 =1V 
                                                      
           but                              RT = 2 Ω 

Copyright reserved                                                     Please turn over

### Page 10

Memo: Phy Sci Gr 10            10                          NW/June 2017

                            but RT=R1 +R2
                          ∴ R2= (2-1, 33) 
          R2 = 0, 67 Ω     R2 =0, 67V 

                                                                  (6)
                                                             [23]

                                                 TOTAL :          150

Copyright reserved                             Please turn over

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