Technical Sciences Memo 2

November 2019 — Grade 12 / Matric — Technical Sciences

Memo 2019 Grade 12 English

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🎯 150 marks 📄 6 pages 📝 59 items found 📚 1 topics

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1.1(2\

1.2(2\

1.3(2\

1.4(2\ (2\

1.7(2\

1.8(2\

1.9(2\

1.10(2\ 20 QUESTION VRAAG

2.5.3 .5 .4

2.6and G : positional isomers B en G : posisionele isomere and H : functional isomers C en H : funksionele isomere (2\

2.7.2(2\ Marking criteria Nasienriglyne If the bonds are missing 0/2 If hydrogen atoms are added

2.8.1bromo butane bromo butaan (2\

2.8.2Butan one /2 butanone But

3.1

3.4Accept butane (structural formula of butane/ 0,5

3.5NEGATIVE MARKING FROM QUESTION

Q3— Section header —

3.6Lower than Laer as (1\ [1 Technical Sciences P2/ Tegniese Wetenskappe DBE/November 2019

4.1Combustion/oxidation Verbranding/ ksidasie 4.

4.3.3bromo butane bromo butaan (2\

5.1Electrolytic (cell\ Elektrolitie se sel (1

5.4Cation Katione (1\

5.5.1Cu 2+ + 2e Cu (2\

5.5.2+ 2e (2\ 5. substance that is reduced/gains electrons

6.1Electrochemical cell that converts chemical energy to electrical energy. Accept : Spontaneous cell 1/2

6.2Mg /Magnesium Accept : negative electrode. Aanvaar : negatiewe ele trode

6.3Ions in\m oist oil (Ione in\ at /klam

6.4It maintains electrical neutrality of the electrolyte (cell\ through the movement of ions It complete the circuit

6.5Decrease Afneem (1

6.6NEGATIVE MARKING FROM QUESTION

6.5(NEGATIEWE NASIEN VAN VRAAG

6.5Magnesium is oxidised to magnesium ions OR Magnesium loses electrons. Magnesium word

6.72Mg + O 4H 2+ + 2H

6.8OPT ON OPSIE OPTION OPSIE

6.9.1Solar energy /photovoltaic cells/Radiant energy Biodiesel

9.2It is easy to use. Cost is lower than petroleum diesel. ower CO emission /less greenhouse gases /environmentally friendly

7.1When light falls upon a plane surface it is so reflected that he angle of reflection is equal to the angle of incidence The incident ray , the normal

7.2

7.3Marking criteria Nasienriglyne Marks Punte Correct label and direction of i ncident ray

7.4.1The angle of incidence in the optically denser medium /in the medium of higher refractive index is such that the refracte d ray just passes

7.4.2(1\

7.4.3A ray will be reflected back into the more optical dense medium 'n Straal sal terug weerkaats word in die meer

7.4.4Total internal reflection Totale interne weerkaatsing. (1\

7.4.5When the angle of incidence in the optically more dense medium is greater than the critical angle, the ray of light reflects back into the

7.5.1Virtual Skynbeeld (1\

7.5.2The image is as far behind the mirror a s the object is in front of the mirror /Image is the same distance

8.1Dispersion Dispersie /verstrooiing. (1\

8.2It consist of light of different frequencies/wavelength Light of different frequencies/wavelengths are refracted

8.3(Continuous\ pectrum Kontinue pektrum.

8.4Green (light\ Groen lig\ (1\

8.5NEGATIVE MARKING FROM QUESTION

8.4(NEGATIEWE NASIEN VAN VRAAG

8.4Green light has a higher frequency than yellow light\ The higher the frequen

8.6A ray of light passes through the optical centre of t he convex lens Die

8.7Concave (diverging\ Konkawe (divergerende\ (1\ Technical Sciences P2/ Tegniese Weten skappe 15

8.8Marking criteria Nasienriglyne Marks Punte Ray 1 start

9.1quantum /packet of energy 'n Kwantum /pakkie energie (2\

9.2Infrared Infrarooi X rays strale

9.3OPTION OPSIE OPTION OPSIE 3,0 x 10

Topics Identified

Business Plan

Mark Allocation

Total150 marks

Sections10 + 19 + 12 = 41 marks

Paper information

SubjectTechnical Sciences

Year2019

SessionNovember

TypeMemo

PaperPaper 2

LanguageEnglish

Pages16

Downloads3

Examination context

Decade2010s

Years ago7y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2019

Days since exam2,544

About Technical Sciences examination preparation

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Technical Sciences Paper 2 (English) →

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Archived on7 September 2026

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