Technical Sciences Grade 11 P2 November Mock 2026 QP (Eng)

Mock hlayiso mock exams Practice Series: Grade 11 Exam Preparation WWW.HLAYISO.COM NATIONAL SENIOR CERTIFICATE GRADE 11 TECHNICAL SCIENCES P2 NOVEMBER EXAMINATION 2026 (MOCK) MARKS: 75 TIME: 1½ hours This question paper consists of 8 pages and 2 data sheets. Copyright reserved Please turn over

Technical Sciences/P2 2 Hlayiso/Mock 2026 NSC Mock INSTRUCTIONS AND INFORMATION 1. Write your centre number and examination number in the appropriate spaces on the ANSWER BOOK. 2. This question paper consists of FIVE questions. Answer ALL the questions in the ANSWER BOOK. 3. Start EACH question on a NEW page in the ANSWER BOOK. 4. Number the answers correctly according to the numbering system used in this question paper. 5. Leave ONE line between two subquestions, e.g. 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 substitutions in ALL calculations. 10. Round off your FINAL numerical answers to a minimum of TWO decimal places. 11. Give brief motivations, discussions, etc. where required. 12. Write neatly and legibly. Copyright reserved Please turn over

Technical Sciences/P2 3 Hlayiso/Mock 2026 NSC Mock QUESTION 1: MULTIPLE-CHOICE QUESTIONS Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1 to 1.5) in the ANSWER BOOK, e.g. 1.6 D. 1.1 The quantity of heat energy needed to raise the temperature of 1 kg of a substance by 1 K (1 ◦ C) is called the … A heat capacity. B specific heat capacity. C internal energy. D work done. (2) 1.2 A thermodynamic system that can exchange ENERGY, but NOT MATTER, with its surroundings is called a/an … system. A open B isolated C working D closed (2) 1.3 The oxidation number of sulphur (S) in sulphuric acid, H2 SO4 , is … A +6 B +4 C –2 D +2 (2) 1.4 Consider the reaction below: Mg(s) + Cu2+ (aq) → Mg2+ (aq) + Cu(s) Which ONE of the following is the REDUCING AGENT in this reaction? A Cu2+ (aq) B Cu(s) C Mg(s) D Mg2+ (aq) (2) Copyright reserved Please turn over

Technical Sciences/P2 4 Hlayiso/Mock 2026 NSC Mock 1.5 In an electrolytic cell, the CATHODE is the electrode where … A reduction takes place and it is connected to the negative terminal of the power source. B oxidation takes place and it is connected to the negative terminal of the power source. C reduction takes place and it is connected to the positive terminal of the power source. D oxidation takes place and it is connected to the positive terminal of the (2) power source. [10] Copyright reserved Please turn over

Technical Sciences/P2 5 Hlayiso/Mock 2026 NSC Mock QUESTION 2 (Start on a new page.) A gas is trapped inside a metal cylinder that is fitted with a movable, airtight piston, as shown below. The gas is heated by a burner and the piston moves outwards. piston gas piston moves out burner 2.1 Name the working substance in this system. (1) 2.2 Is the gas in the cylinder an OPEN, CLOSED or ISOLATED system? Give a reason for the answer. (2) 2.3 State the first law of thermodynamics in words. (2) 2.4 The gas absorbs 1 800 J of heat from the burner and does 650 J of work on the piston. Calculate the change in the internal energy of the gas. (3) 2.5 How will the temperature of the gas change? Write down only INCREASES, DECREASES or REMAINS THE SAME. (1) 2.6 Give a reason for the answer to QUESTION 2.5. (1) [10] Copyright reserved Please turn over

Technical Sciences/P2 6 Hlayiso/Mock 2026 NSC Mock QUESTION 3 (Start on a new page.) 3.1 Define the term specific heat capacity. (2) 3.2 Learners heat 0,2 kg of water and 0,2 kg of ethyl alcohol in identical containers, using two identical electric heaters. Both liquids start at 20 ◦ C. They record the temperature of each liquid every minute. Their results are shown below. Time (min) 0 1 2 3 4 Temperature of water (◦ C) 20,0 24,0 28,0 32,0 36,0 Temperature of ethyl alcohol (◦ C) 20,0 26,8 33,7 40,5 47,3 3.2.1 Write down the independent variable for this investigation. (1) 3.2.2 Write down ONE controlled variable for this investigation. (1) 3.2.3 Use the specific heat capacities on the data sheet to explain why the temperature of the ethyl alcohol rises faster than that of the water. (2) 3.2.4 Calculate the heat capacity of the 0,2 kg sample of water. (3) 3.2.5 Calculate the quantity of heat absorbed by the water during the first 4 minutes. (3) 3.3 Explain why water is used as the coolant in the radiator of a car engine. (2) 3.4 A 0,25 kg aluminium block at a temperature of 120 ◦ C is dropped into 0,4 kg of water at 18 ◦ C. The water is in a well-insulated container. Ignore the heat capacity of the container. 3.4.1 What type of thermodynamic system does the well-insulated container with its contents represent? (1) 3.4.2 State the law of conservation of heat (principle of heat exchange) in words. (2) 3.4.3 Calculate the final temperature of the water and the aluminium block. (5) 3.4.4 Write down ONE assumption that you made in the calculation in QUESTION 3.4.3. (1) [23] Copyright reserved Please turn over

Technical Sciences/P2 7 Hlayiso/Mock 2026 NSC Mock QUESTION 4 (Start on a new page.) 4.1 Define the term oxidising agent in terms of electron transfer. (2) 4.2 Determine the oxidation number of the UNDERLINED element in each of the following. Show ALL steps. 4.2.1 KMnO4 (2) 4.2.2 Na2 SO3 (2) 4.2.3 Fe2 O3 (2) 4.3 A learner places a clean strip of magnesium ribbon in a beaker containing a colourless silver nitrate solution, AgNO3 (aq). The balanced equation for the reaction is: Mg(s) + 2Ag+ (aq) → Mg2+ (aq) + 2Ag(s) 4.3.1 Write down the OXIDATION half-reaction. (2) 4.3.2 Write down the REDUCTION half-reaction. (2) 4.3.3 Write down the FORMULA of the oxidising agent. (1) 4.3.4 Use oxidation numbers to explain why magnesium is said to be OXIDISED. (2) 4.3.5 Write down ONE observation that the learner will make during the reaction. (1) [16] Copyright reserved Please turn over

Technical Sciences/P2 8 Hlayiso/Mock 2026 NSC Mock QUESTION 5 (Start on a new page.) A refinery in Mpumalanga purifies copper by electrolysis. The simplified diagram below shows the cell. Electrode X is a plate of impure copper and electrode Y is a thin sheet of pure copper. The electrolyte is a copper(II) sulphate solution, CuSO4 (aq). + – DC source X Y CuSO4 (aq) sludge 5.1 Define the term electrolysis. (2) 5.2 Write down the energy conversion that takes place in this cell. (1) 5.3 Which electrode, X or Y, is the ANODE? (1) 5.4 Write down the half-reaction that takes place at the CATHODE. (2) 5.5 Write down the half-reaction that takes place at the ANODE. (2) 5.6 Is the reaction at the cathode an OXIDATION or a REDUCTION? Give a reason for the answer. (2) 5.7 Write down ONE observation that will be made at electrode X and ONE observation that will be made at electrode Y. (2) 5.8 Impurities such as silver and gold collect at the bottom of the cell. Write down the name used for this mixture of impurities. (1) 5.9 How will the concentration of Cu2+ (aq) ions in the electrolyte change during the process? Write down only INCREASES, DECREASES or REMAINS (approximately) THE SAME. (1) 5.10 State TWO other uses of electrolysis in industry. (2) [16] TOTAL: 75 Copyright reserved

Technical Sciences/P2 1 Hlayiso/Mock 2026 NSC Mock DATA FOR TECHNICAL SCIENCES GRADE 11 PAPER 2 TABLE 1: SPECIFIC HEAT CAPACITIES SUBSTANCE SPECIFIC HEAT CAPACITY (J·kg–1 ·K–1 ) Water 4 200 Ice 2 100 Ethyl alcohol 2 460 Methylated spirits 2 400 Aluminium 900 Glass 700 Iron 460 Copper 400 Brass 380 Zinc 380 Mercury 140 Lead 130 TABLE 2: FORMULAE HEAT AND THERMODYNAMICS C = mc Q = mc∆T ∆Q = ∆U + ∆W Copyright reserved Please turn over

Technical Sciences/P2 2 Hlayiso/Mock 2026 NSC Mock TABLE 3: THE PERIODIC TABLE OF ELEMENTS 1 2 13 14 15 16 17 18 (I) (II) 3 4 5 6 7 8 9 10 11 12 (III) (IV) (V) (VI) (VII) (VIII) 1 2 Atomic number 2,1 H He 1 KEY 4 29 3 4 5 6 7 8 9 10 1,0 1,5 Electronegativity 1,9 Cu Symbol 2,0 2,5 3,0 3,5 4,0 Li Be B C N O F Ne 7 9 63,5 11 12 14 16 19 20 11 12 13 14 15 16 17 18 0,9 Na 1,2 Mg 1,5 Aℓ 1,8 Si 2,1 P 2,5 S 3,0 Cℓ Ar Approximate relative atomic mass 23 24 27 28 31 32 35,5 40 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 0,8 K 1,0 Ca 1,3 Sc 1,5 Ti 1,6 V 1,6 Cr 1,5 Mn 1,8 Fe 1,8 Co 1,8 Ni 1,9 Cu 1,6 Zn 1,6 Ga 1,8 Ge 2,0 As 2,4 Se 2,8 Br Kr 39 40 45 48 51 52 55 56 59 59 63,5 65 70 73 75 79 80 84 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 0,8 Rb 1,0 Sr 1,2 Y 1,4 Zr Nb 1,8 Mo 1,9 Tc 2,2 Ru 2,2 Rh 2,2 Pd 1,9 Ag 1,7 Cd 1,7 In 1,8 Sn 1,9 Sb 2,1 Te 2,5 I Xe 86 88 89 91 92 96 101 103 106 108 112 115 119 122 128 127 131 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 0,7 Cs 0,9 Ba La 1,6 Hf Ta W Re Os Ir Pt Au Hg 1,8 Tℓ 1,8 Pb 1,9 Bi 2,0 Po 2,5 At Rn 133 137 139 179 181 184 186 190 192 195 197 201 204 207 209 87 88 89 0,7 Fr 0,9 Ra Ac 226 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu 140 141 144 150 152 157 159 163 165 167 169 173 175 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 232 238 Copyright reserved