Physical Sciences Grade 11 P1 Gauteng November 2023 Memo

Downloaded from hlayiso.com PROVINCIAL EXAMINATION/ PROVINSIALE EKSAMEN NOVEMBER 2023 GRADE/GRAAD 11 MARKING GUIDELINES/ NASIENRIGLYNE PHYSICAL SCIENCES: (PHYSICS) PAPER 1 FISIESE WETENSKAPPE: (FISIKA) VRAESTEL 1 13 pages/bladsye

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 QUESTION/VRAAG 1 1.1 B  (2) 1.2 A  (2) 1.3 D  (2) 1.4 D  (2) 1.5 C  (2) 1.6 B  (2) 1.7 D  (2) 1.8 B  (2) 1.9 B  (2) 1.0 B  (2) [20] QUESTION/VRAAG 2 2.1 The vector sum of two or more vectors, i.e. a single vector having the same effect as two or more vectors together. ✓✓ Die vektorsom van twee of meer vektore, dit is ʼn enkele vektor wat dieselfde effek het as twee of meer vektore saam. ✓✓ OR/OF The single force that will have the same effect as all the other forces together. ✓✓ Die enkele krag wat dieselfde effek sal hê as al die ander kragte saam. ✓✓ (2) 2.2 TX = (250)cos45 = 176,78 N right/regs Marking criteria/Nasienkriteria Ty = (250)sin45 = 176,78 N up/opwaarts  Components of T and direction ✓ Komponente van T en rigting FX = (150)cos20 = 140,95 N left/links Components of F and direction ✓ FY = (150)sin20 = 51,30 N up/opwaarts  Komponente van T en rigting Fnetx and direction ✓ Rx = TX - FX F netx en rigting = +176,78 + (-140,95) Fnety and direction ✓ = 35,83 N right/regs  Fnety en rigting Ry = Ty + FY - w + 176,78 + 51,30 - 100 = 128,08 N up/opwaarts  (4) 2

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 2.3 R2 = Rx2 + Ry2 = 128,082 + 35,832  R = 133,00 N  tan =   = 74,37  R = 133,00 N at 74,37 above the horizontal/bokant die horisontaal  OR/OF R = 133,00 N at bearing of/in die rigting van 15,62 (5) 2.4 130,50 N  at bearing of/in die rigting van 254,38  (2) [13] QUESTION/VRAAG 3 3.1 Static frictional force is the force that opposes the tendency of motion of a stationary object relative to a surface. /Statiese wrywingskrag is die krag wat die beweging van ʼn stilstaande voorwerp relatief tot ʼn oppervlak teenstaan. ✓✓ (2) 3.2 Marking criteria/Nasienkriteria ✓ Fg/w (lower case) and direction of arrow OR its components. Fg/w (klein letter), en rigting van pylpunt. OF sy komponente ✓ fs direction correct fs rigting korrek ✓ N direction correct N rigting korrek OR/OF (3) 3.3 fsmax/maks = μs N  = μs Fg┴ = 0,1x (80 x 9,8)cos 4,76  = 78,13 N  (3) 3

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 3.4 3.4.1 Remain the same /Bly dieselfde  (1) 3.4.2 • s remains constant /s bly constant  (1) 3.4.3 • The Normal will increase  as the incline decreases, the mass will remain the same, • Static frictional force is proportional to the normal force therefore static frictional force increases  (Must answer IN WORDS) • Die normaal sal toeneem  as die helling afneem, die massa sal dieselfde bly. • Statiese wrywingskrag is eweredig aan die normaalkrag daarom sal statiese wrywingskrag toeneem.  (Moet in WOORDE antwoord) (2) 3.5 3.5.1 Graph to show relationship between friction and normal force Grafiek om verhouding tussen wrywing en normale krag aan te dui Friction/Wrywing (N) A – max static friction/ maks. statiese wrywing B – kinetic friction/ kinetiese wrywing Normal/Normaal (N) Marking criteria/Nasienkriteria ✓ Friction and units on y-axis./Wrywing en eenhede op y-as ✓ Normal and units on x-axis/Normaal en eenhede op x-as ✓✓ Two staight lines through the origin/Twee reguitlyne deur die oorsprong (4) 3.5.2 The gradient of the gradient.  Die gradiënt van die helling.  (1) 4

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 3.5.3 The coefficient of kinetic friction is always smaller than the coeffiecient of static friction.  (Award 1 mark for an answer if it is not stated exactly as above.) Kinetic fricticion is a constant for a specific surface. OR Gradient = coefficient OR Constant for a specific surface OR At rest/wheels/walking = static friction. Two flat surfaces moving towards each other is static friction. Die koëffisiënt van kinetiese wrywing is altyd kleiner as die koëffisiënt van statiese wrywing.  (Ken 1 punt vir die antwoord toe as dit nie presies soos hierbo gestel word nie.) Kinetiese wrywing is ʼn konstante vir ʼn spesifieke oppervlakte OF Gradiënt = koëffisiënt OF Konstant vir ʼn spesifieke oppervlakte OF In rus/wiele/loop = statiese wrywing. Twee plat oppervlaktes wat teenmekaar beweeg is statiese wrywing. (2) [19] QUESTION/VRAAG 4 4.1 Newton’s first law /Newton se eerste wet  (2) 4.2 The mass of the object /Die massa van die voorwerp  (1) 4.3 Seatbelts /Sitplekgordels (1) 4.4 Fnet y = 0N /Zero/Nul (2) [6] QUESTION/VRAAG 5 5.1 A body will remain in its state of rest or motion at constant velocity unless a non-zero resultant/net force acts on it.  ʼn Liggaam sal in sy toestand van rus of beweging teen ʼn konstante snelheid bly tensy ʼn nie-nul resultante/netto krag daarop inwerk.  (2) 5.2 Marking criteria/Nasienkriteria ✓ Fg/w (lower case) and direction of arrow Fg/w (klein letter) en rigting van pylpunt. ✓ T direction correct/T rigting korrek ✓ F direction correct/F rigting korrek ✓ fs direction correct/ fs rigting korrek ✓ N direction correct/N rigting korrek (5) 5

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 5.3 5.3.1 For/Vir B: FnetY = 0N   N = Fg⊥ = 8 x 9,8 x cos 15  = 75,72 N ⊥ up incline/op helling  (3) 5.3.2 Fnet 0n A = 0N  T = fs on A + Fg//A = 29,88 + (10 x 9,8 x sin 15)  = 55,24 N up slope/teen helling op  (3) 5.3.3 Fnet 0n B = 0N  F = T + fs on B + Fg//B = 55,26 + (0,21 x 75,72)  + (8 x 9,8 x sin 15)  = 91,43 N up slope/teen helling op  (4) 5.4 When a resultant/net force acts on an object, the object will accelerate in the direction of the force at an acceleration directly proportional to the force  and inversely proportional to the mass of the object.  Wanneer ʼn resulterende krag op ʼn voorwerp inwerk, versnel die voorwerp in die rigting van die krag met ʼn versnelling direk eweredig aan die krag  en omgekeerd eweredig aan die massa van die voorwerp.  (2) 5.5 29,88 N  down slope/teen die helling af  OR/OF Same size  but opposite direction.  Dieselfde grootte  maar teenoorgestelde rigting.  (2) 6

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 5.6 Fnet A = m x a  = + Fg// + fk - T 10a = +(10 x 9,8 x sin 15˚) + 29,88 – T 10 a = + 55,24 - T …1 Fnet B = m x a = +T - Fg// – fsB 8a = +T - (8 x 9,8 sin 15) – (0,31 x 75,72) 8 a = +T - 43,76 …2  1+2 10a = + 55,24 -T 8 a = +T – 43,76 18 a = 11,48 a = 0,638 m.s-2 down the incline/teen die helling af.  (5) 5.7 5.7.1 INCREASES /NEEM TOE  (1) 5.7.2 The k is constant  thus, the normal will increase, with a decrease of the incline.  The normal is directly proportional to the frictional force.  Die k is konstant  dus, die normaal sal toeneem met ʼn afname van die helling.  Die normaal is direk eweredig aan die wrywingskrag.  (3) 5.8 Block A on Block B and Block B on Block A.  Block A on the earth and the Earth on block A. ANY ONE RELEVANT Newton’s third law pair. – NOTE: Normal force and the force of gravity is NOT a third law pair. Blok A op Blok B en Blok B op Blok A.  Blok A op die aarde en die aarde op blok A ENIGE RELEVANTE Newton se derde wet paar,. – LET WEL: Normaalkrag en swaartekrag is NIE ʼn derde wetspaar nie. (2) [32] 7

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 QUESTION/VRAAG 6 6.1 Charges cannot be created or destroyed but can only be transferred from one object to another.  Ladings kan nie geskep of vernietig word nie maar kan slegs oorgedra word van een voorwerp na ʼn ander.  (2) 6.2 nelectrons/elektrone =  =  OR/OF = 2,5 x 1010 (electrons/elektrone)  (3) 6.3 The magnitude of the electrostatic force exerted by one point charge on another point charge is directly proportional to the product of the magnitudes of the charges  and inversely proportional to the square of the distance between them.  Die grootte van die elektrostatiese krag wat deur twee puntladings op mekaar uitgeoefen word is direk eweredig aan die produk van die grootte van die ladings  en omgekeerd eweredig aan die kwadraat van die afstand tussen hulle.  (2) 6.4 Attraction/Aantrekkingskrag  (1) 6.5 Qnew/nuut = =  = –5 x 10–10 C (2) 6.6 F=  = OR/OF = 1,41 x 10–6 N  (4) 6.7 Four time greater /Vier keer groter  (1) [15] 8

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 QUESTION/VRAAG 7 7.1 Electric field at a point is the force per unit positive charge placed at that point.  Elektriese veld by ʼn punt is die krag per eenheid positiewe lading wat by die punt in die veld geplaas word.  (2) 7.2 Marking criteria/Nasienkriteria ✓ Correct shape as shown Korrekte vorm ✓ Direction towards negative Rigting na negatief (2) 7.3 E =  6 x107 =  Q = 6,67 x 10–3 C (4) 7.4 ER p EQ ER =  Enet = EQ – ER = 6 x107  –  = 4,82 x 10-7 N.C–1  to the right/na regs  (5) [13] 9

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 QUESTION/VRAAG 8 8.1 The magnitude of the induced emf across the ends of a conductor is directly proportional to the rate of change in the magnetic flux linkage with the conductor.  Die grootte van die geïnduseerde emk oor die ente van die geleier is direk eweredig aan die tempo van verandering van magnetiese vloedkoppeling met die geleier.  (2) 8.2 Current is induced into the coil. /Stroom word in die spoel geïnduseer  (1) 8.3 The right-hand solenoid rule. /Die regterhand solenoïde reël.  (1) 8.4 Increase the number of turns/coils on the solenoid.  Increase the current in the solenoid.  Use a stronger magnet on the right.  Use a soft metal bar inside the solenoid. (Any THREE) Verhoog die aantal windinge in die solenoïde.  Verhoog die stroom in die solenoïde.  Gebruik ʼn sterker magneet aan die regterkant.  Gebruik ʼn sagte metaalkern binne in die solenoïde. (Enige DRIE) (3) 8.5  = N  = –200  = 0,4 V  (3) [10] QUESTION/VRAAG 9 9.1 The potential difference across a conductor is directly proportional to the current in the conductor at constant temperature.  Die potensiaalverskil oor ʼn geleier is direk eweredig aan die stroom in die geleier by ʼn konstante temperatuur.  (2) 9.2 The light bulb/Die Gloeilamp/15  resistor  (2) 10

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 9.3 The temperature will increase as it heats up, the resistance will increase if the current is flowing for a long time.  OR The temperature will not be controlled thus resistance will increase. Die temperatuur sal toeneem soos wat dit warm word, die weerstand sal toeneem indien die stroom vir ʼn lang tyd vloei.  OF Die temperatuur sal nie gekontroleer word nie en daarom sal die weerstand toeneem. (2) 9.4 9.4.1 RT = R1 + R2 + R3 = 5 + 15 + 10  = 30   (2) 9.4.2 Itot =  =  = 0,5 A  (3) 9.4.3 V = I x R = 0,5 x 10  =5V (2) 9.5 Brightness will increase /Helderheid sal toeneem  (1) 9.6 • Total resistance of the parallel connection decreases  Die totale weerstand van die paralleltak sal afneem.  OR/OF • More energy is available to the other two resistors in series.  Meer energie is beskikbaar vir die ander twee resistors in serie.  OR/OF • Power is directly proportional to the volts over the resistor and the current through the resistor.  Drywing is direk eweredig aan die potensiaalverskil oor die resistors en die stroom deur die resistors.  (2) 11

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 9.7 9.7.1 V5 = I x R = 0,58 x 5 = 2,9 V  V15 = I x R = 0,58 x 15 = 8,7 V  VT = V1 + V2 + VP 15 = 2,9 + 8,7 + VP VP = 3,4 V  (3) 9.7.2 RT = = = 25,86   RP = RT – Rs = 25,86 – 20 = 5,86   = + R = 14,15   (3) [22] TOTAL/TOTAAL: 150 12

Downloaded from hlayiso.com PHYSICAL SCIENCES: PHYSICS MARKING GUIDELINES/ FISIESE WETENSKAPPE: FISIKA NASIENRIGLYNE (PAPER/VRAESTEL 1) GRADE/GRAAD 11 Taxonomy Grid Recall Comprehension Analysis Evaluation Q no: Mark Q no: Mark Q no: Mark Q no: Mark 1.1 2 1.3 2 1.4 2 1.2 2 1.5 2 1.6 2 1.7 2 1.9 3 1.8 2 1.10 2 2.1 2 2.4 2 2.2 4 2.3 5 3.1 2 3.2 3 3.3.2 3 3.3.1 1 3.4.3 2 3.4.1 4 3.4.2 1 4.1 2 4.4 2 4.2 1 4.3 1 5.1 2 5.2 5 5.3 10 5.4 2 5.5 2 5.6 5 5.7 4 5.8 2 6.1 2 6.2 3 6.3 2 6.4 1 6.5 2 6.6 4 6.7 1 7.1 2 7.2 2 7.3 4 7.4 5 8.1 2 8.2 1 8.5 3 8.3 1 8.4 3 9.1 2 9.2 2 9.4 7 9.5 2 9.3 2 9.7 6 9.6 3 Total marks 18% 27 28 43 44% 66 9% 14 Total %/100% P1&2: 15% P1:35%/P2:40% P1:40%/P2:35% P1&2: 10% 13