Physical Sciences Memo 2 (English & Afrikaans)

Common 2016 — Grade 12 / Matric — Physical Sciences

Memo 2016 Grade 12 Bilingual Physical Sciences Hub →

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🎯 150 marks 📄 10 pages 📝 93 items found ∑ 1 math symbols 📚 3 topics

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Q1— Section header —

1.1(2\

1.2(2\

1.3(2\

1.4(2\

1.5(2\

1.6(2\

1.7(2\

1.8(2\

1.9(2\

1.10(2\ [20]20

Q2— Section header —

2.1A pure substance is a subs tance that cannot be separated into simpler components by physical methods. n Suiwer stof is n stof wat nie deur fisiese metodes in eenvoudiger komponente opgebreek kan word nie

2.2.1Element (1\

2.2.2Consist of only one type of atom Bestaan uit net een tipe atoom (1\

2.2.3Mixtures Mengsel (1\

2.2.4It is a combination of many gases Dit is kombinasie van baie gasse (1\

2.3Pots and pans are made of metal because, metal is a good conductor that allows heat to be transferred so that the food can cook . The handles are insulators

2.4.1NaC (2\

2.4.2Ca(OH\ (2\ [11]11

Q3— Section header —

3.1.1Temperature Temperatuur (1\

3.1.2Time Also accept phase change Tyd . Aanvaar ook faseverandering (1\

3.2What is the relationship between an increase in temperature over a period of time a phase change Wat is die ver wantskap tussen

3.3Solid Vaste stof (1\ (1\

3.5Boiling point is the temperature of a liquid at which its vapour pressure is equal to the external (atmospheric\ pressure. Kookpunt is die temperatuur van n vloeistof waar sy dampdruk gelyk is die eksterne (atmosferiese\ druk.

3.6Liquid changes to gas. Vloeistof na gas (1\

3.7The energy is used to break the forces between the particles , resulting in a phase change , the kinetic energy of the particles remains the same particle move further away from each other

3.8Substance 2 Substance 2 lower melting and/ or boiling point than substance Stof Stof 2 het n laer smelt en/of kookpunt as

3.9Thermometer Termometer (1\

3.10Equal to Substance 1 and 2 are at the same temperature. Therefore they will have the same average kinetic energy. Gelyk aan. Stof 1 en 2 is by dieselfde temperatuur. Dus sal hulle oor dieselfde gemiddelde kinetiese energie beskik.

Q4— Section header —

4.1Ionisation energy is the energy needed to remove an electron from one mole of an atom in a gaseous phase. Ionisasie energie is die energie benodig om n elektron uit een mol van 'n

4.2.1Metals have lower first ionis ation energy than non metals therefor metals w ould

4.2.2Non metals have higher first ioni ation energy than metals therefor non metals w

4.3The second electron is removed from the energy level very close to the nucleus, therefore the force of attraction between th e electron and the nucleus is stronger hence more energy is needed to remove the second

Q5— Section header —

5.1Isotopes are atoms of the same element having the same number of protons but different number of neutrons. Isotope is atome van dieselfde element wat dieselfde getal protone het, maar verskillende getalle neutrone.

5.2.1A and (1\

5.2.2Fluorine Fluoor (1\

63.62Ar(Cu\ (4\

5.4.3isotope magnesium isotope isotoop magnesium isotoop

5.4(5\

5.5(NH (1\

5.6Covalent bond lectrons are shared between the atoms of hydrogen and nitrogen Kovalente binding. Elektrone word gedeel tussen die atome van waterstof en stikstof.

5.7(2\

5.8(1\

5.9(2\ [21]21

Q6— Section header —

6.1.1Reaction (ii\ Reaksie (ii\ (1\

6.1.2Reaction (i\ Reaksie (i\ (1\

6.2Gas phase Gasfase (1\

6.3.1(CO aluminiumkarbonaat (CO (2\

6.3.2aluminiumoksied (2\

6.4(g\ (g\ (g\ (2\

6.5Reactants Reaktante (CO = (2 27\ (3 12\ (9 = 234 g.mol Products /Produkte

6.6M(HC \ = 1 + 35,5 = 36,6 g.mol 2,74%

36.5= 97,26% (3\ [15]15

Q7— Section header —

7.2(3\

7.31 : 1 Thus 2 mol of KC dissolves. Dus 2 mo los op. (2\

7.452,35% 74,5 (2\

7.5Increase Toeneem (1\

7.6NEGATIVE MARKING FROM Q UESTION

Q7— Section header —

7.1An electrolyte is a solution that conducts electricity through the movement of ions. n Elektroliet is n oplossing wat elektrisiteit gelei deur die beweging van ione. (2\

Q8— Section header —

8.1The empirical formula is the simplest whole number ratio of atoms in a compound. Die empiriese formule is die eenvoudigste heelgetalverhouding van atome in n verbinding. (2\ If 100 g of the compound is available then:

8.2

Q9— Section header —

9.1Temperature Temperatuur C or 273 Pressure Druk : 101 3 kPa or 1 atm

9.2.1n(Na\ = 0,43 mol Na Na : H 2 : 1 Thus 0, mol H produced Dus 0,22 mol H word geproduseer

9.2.2POSITIVE MARKING FROM 9.2.1 POSITIEWE NASIEN VAN 9.2.1 n(H 22 = V = 4 93 dm (3\

9.2.3POSITIVE MARKING FROM 9.2.1 POSITIEWE NASIEN VAN 9.2.1 n(Na\ : n(NaOH\ 2 : 2 Thus mol NaOH = 0 43 mol Dus mol NaOH = 0,43 mol n(NaOH\ 43 =

9.2.4POSITIVE MARKING FROM 9.2.3 POSITIEWE NASIEN VAN

9.2.1c = 0, 22 mol.dm [16] UESTION 1016

Q10— Section header —

10.1Precipitate Presipitaat/Neerslag (1\

10.2.2.1 Step I: BaCl Step II: n o reaction Stap I: BaCl Stap II: geen reaksie (2\ .2.2

10.3.3.1

10.3.2(1\

10.3.3(1\

10.4Precipitation Presipitasie (neerslag\ Evaporation Verdamping Condensation Kondensasie (3\

10.5Building dams that store drinking water and water for household need or agriculture. Boreholes are used to tap ground water for use. Any applicable answer. ou damme vir drinkwater en huishoudelike gebruik of landbou.

Mathematical Content

f(x)

Topics Identified

MechanicsChemical BondingThermodynamics

Mark Allocation

Total150 marks

Sections20 + 11 + 21 + 15 + 12 + 14 + 16 + 14 = 123 marks

Paper information

SubjectPhysical Sciences

Year2016

SessionCommon

TypeMemo

PaperPaper 2

LanguageBilingual

Pages10

Downloads3

Examination context

Decade2010s

Years ago10y

Season—

Start day—

Exam period—

Days since exam—

About Physical Sciences examination preparation

Grade 12 Physical Sciences combines Physics and Chemistry. Paper 1 covers mechanics, electricity, waves, and optics, while Paper 2 focuses on chemical bonding, organic chemistry, and electrochemistry.

Every available Grade 12 Physical Sciences past paper and memorandum is collected in the Physical Sciences hub at physical-science.freemode.co.za — browse all years, sessions and languages in one place.

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applying scientific principles

selecting appropriate equations

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performing calculations with correct units

explaining scientific reasoning

A practical revision approach

Create a one-page formula sheet and practice deriving units from first principles. The memorandum rewards correct formula identification, proper substitution, and accurate unit handling.

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