# Physical Sciences Grade 12 P1 Eastern Cape Mock 2021 QP > Grade 12 Physical Sciences Paper 1 question paper from the Eastern Cape Mock Exam 2021 (Sesotho), 19 pages. Read online or download the free PDF. - Page: https://www.hlayiso.com/library/physical-sciences-p1-qp-sept-2021-sesotho/c4861d7b-50ae-4b07-b0b0-74db6f915faa - Updated: 2026-09-27 - Subject: Physical Sciences - Grade: Grade 12 - Language: Sesotho - Document type: Question paper - Year: 2021 - Exam period: Eastern Cape Mock Exam - Paper: 1 - Curriculum: CAPS - Pages: 19 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Library](https://www.hlayiso.com/library) › [Grade 12](https://www.hlayiso.com/library/grade-12) › [Physical Sciences](https://www.hlayiso.com/library/grade-12/physical-sciences) › [Physical Sciences Grade 12 P1 Eastern Cape Mock 2021 QP](https://www.hlayiso.com/library/physical-sciences-p1-qp-sept-2021-sesotho/c4861d7b-50ae-4b07-b0b0-74db6f915faa) ## About this document Physical Sciences · Grade 12 · Eastern Cape Mock Exam · 2021 · sesotho. Question paper, 19 pages. Read online or download the PDF. Read it free online on the page above; download the PDF from there. ## Document text Text extracted from the PDF. Layout, diagrams and tables may not survive extraction. ### Page 1 Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE SEHLOPHA SA 12 LOETSE 2021 THUTO YA TSA MAHLALE P1 MATSHWAO: 150 NAKO: dihora tse 3 Pampiri ena e na le maqephe a 19 le datha shiti tse 3. ### Page 2 Downloaded from hlayiso.com 2 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) DITAELO LE TLHAISO-LESEDING 1. Ngola LEBITSO le FANE ya hao sebakeng se nepaahetseng BUKENG YA HO ARABELA. 2. Pampiri ena e na le dipotso tse LESHOME. Arabela dipotso tsohle BUKENG YA HO ARABELA. 3. Qala potso KA NGWE leqepheng LE LETJHA BUKENG YA HO ARABELA. 4. Nomora dikarabo ka nepo jwalo ka ha ho entswe pampering ena ya dipotso. 5. Siya mola O LE MONG dipakeng tsa dipotswana tse pedi, mohlala, dipakeng tsa POTSO YA 2.1 le POTSO YA 2.2. 6. O ka sebedisa sesebediswa sa ho bala (calculator) se sa porokerengwang 7. O ka sebedisa dihlomo tse nepahetseng tsa dipalo. 8. Bontsha diforomo TSOHLE le tsela eo di kenyelleditsweng ka yona lipalong TSOHLE. 9. QETELLONG, Phethela dikarabo tsa hao ka ho sebedisa bonnyane dinomoro TSE PEDI tsa di desimali. 10. Fana ka lebaka, tlhaloso, le tse ding ka bokgutshwanyane moo ho hlokehang. 11. O eletswa ho sebedisa DI DATHA SHITI tse hokelletsweng. 12. Ngola ka makhethe le ka mongolo o balehang. Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 3 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 3 POTSO YA 1: DIPOTSO TSA KGETHO O filwe dikgetho tse fapaneng ele dikarabo tse ka kgonehang tse latelang. Kgetha Karabo e be o ngola feela tlhaku (A–D) pela nomoro ya potso (1.1 ho isa ho 1.10) BUKENG YA HO ARABELA. MOHLALA 1.11 E. 1.1 Imphalese e fitiswang ke nete fose e etsahalang ho ntho e lekana le … A momentamo wa ntho wa qalo. B Momemtamo wa ntho wa qetelo. C Ho fetoha ha momemtamo wa ntho. D Sekgahla sa phetoho ya momentamo ya ntho. (2) 1.2 Kerafo e latelang e ka tlase e bontsha kamano dipakeng tsa nete fose e sebedisitsweng ho ntho le disepolasemente e enkileng. Fose le disepolasemente di ya nqa e le ngwe. Nete Fose Disepolasemente Ke efe ele NGWE ho di polelo tse latelang e hlalosang se kerafong? A Sebaka se dipakeng tsa kerafo le disepolacemente akisise e emetse nete weke (network) e entsweng ke fose. B Sebaka se dipakeng tsa kerafo le disepolacemente akisise se emetse phawara (power) e senyehang ka ho susumetswa ke fose. C Moepa wa kerafo o emetse ho fetoha ha matla a kaenetiki ya ntho. D Moepa wa kerafo o emetse mosebetsi o entsweng ke fose. (2) Ha o a dumellwa ho kopa Ka kopo phetla ### Page 4 Downloaded from hlayiso.com 4 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) 1.3 Setshwantsho se latelang se bontsha di fose tse etsahalang ho ntho e hulwang ho ya ka ho le letona ke fose F e etsahalang enkeleng θ e motsitsong. N F θ fk w Ke e fe e le NNGWE ho tse latelang dikemedi tse ka sebediswang ho fumana boholo ba kaenetiki forikishinale fose (fk) e etsahalang ho ntho. A µ(w + Fsinθ) B µ(w – Fsinθ) C µ(N – w) D µw (2) 1.4 Tulo-nako kerafo e latelang e bontsha motsamao wa bolo ho tloha hang ha e lokollwa hore e tsamae maemong a itseng ho tloha fatshe ebe e qhoma makgetlo a itseng. Se natse ditla morao tse ka bakwang ke thibello ya moya. P Tulo (m) R S Q Nako (s) Ke ntlha efe (P, Q, R or S) kerafong e emetseng tulo-nako coodinatse tsa bophahamo bo hodimo dim obo fihlelletsweng ke bolo ka mora ho qhoma kgetlo la BOBEDI? A P B Q C R D S (2) Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 5 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 5 1.5 Matla a kaenetiki ya koloi e tsamayang ka lebelo v ke K. lebelo la koloi le ya fetoha ho na 2v. matla a kaenetiki ya koloi a matjha ke bokae? A ¼K B ½K C 2K D 4K (2) 1.6 mohlodi wa modumo o atamela molebelli a emeng ka lebelo le sa fetoheng. Ke efe ele NNGWE ho tse latelang e hlalosang ho fapana ha forikwensi e shebuweng le weibelenfo ho tloha ho ela ya mohlodi ya modumo. wabelenthe e bonweng Forikwensi e bonweng A E kgolo ho E kgolo ho B E nyane ho E nyane ho C E nyane ho E kgolo ho D E kgolo ho E nyane ho (2) 1.7 Eleketiriki filiti phathene dipakeng tsa di dikadikwe tse tjhatjhileng, A le B, e bontshitswe ka tlase. Ke efe ele NNGWE ho tse latelang tsa dipolelo ho latela tjhatjhe ho sedikadikwe sa A le B e nepahetseng? A Sedikadikwe sa A se na le nekethifo tjhatjhe, ha sedikadikwe sa B se na le phosithifo tjhatjhe. B Sedikadikwe sa A ke phosethifo tjhatjhe, ha sedikadikwe sa B e le nekethifo tjhatjhe. C Sedikadikwe A le B di phosethifo ka bobedi. D Sedikadikwe A le B di nekethifo ka bobedi. (2) Ha o a dumellwa ho kopa Ka kopo phetla ### Page 6 Downloaded from hlayiso.com 6 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) 1.8 SI uniti ya hokala hwa sekgahla SA HOTSAMAYA HWA TJHATJHE ka hara kontactara ke … A watt. B volt. C ampere. D coulomb. (2) 1.9 Ke efe ele NNGWE ho tse latelang tsa diphetoho ho aha AC jenereitara e tla eketsa sehlaiswa se hodimo sa emf? A Fetola polarity ya di makenete. B Sebedisa di silipi ring tse kgolo. C Sebedisa marashe a maholo. D Ho eketsa lenane la ho harela coiling. (2) 1.10 Laene emishine sepeketeramo e etsahala ha … A d eleketerone tse maemong a fatshe di ya maemong a matla a hodimo. B di eleketerone tse maemong a matla a hodimo di ya maemong a matla a tlase. C kganya e tshweu e feta ho kgalase e batang. D kganya e tshweu e feta ho kgutlo tharo ya porisimo. (2) [20] Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 7 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 7 POTSO YA 2 2.1 Di boloko tse pedi tsa boima 2 kg le 5kg di kopantswe ka kgwele e bebe e thata. Diboloko di hulwa ho bokahodimo bo mahwashe bo tsitsitseng ke fose, F. fose e etsa enkele ya 20° le motsitso. Sheba setshwantshong se latelang. Diboloko 2 kg le 5 kg di utlwa kaenetiki forikitionale fose ya 10 N le 15 N kaholatellana. F 5 kg 20° 2 kg 2.1.1 Bolela molao wa motsamao wa bobedi wa Newton. (2) 2.1.2 Taka o be o bontshe foree-body diakeramo ya boloko ba 5 kg. (5) 2.1.3 Bala boholo ba fose F e tlamehang ho ntshwa ka enkele ya 20° ho botsitso ho etsa hore diboloko tse pedi di potlake ka 2 m.s -2 ho ya ho le letona. (5) 2.2 Lefatshe le ntsha fose ya 1 842,50 N ho boloka sethelite ya boima(mass) ba 200 kg e potolohang le lefatshe jwalo ka ha ho bontshitswe setshwantshong. Bala sebaka, ka hodimo ho BOKAHODIMO BA LEFATSHE moo sethelite e potapotang lefatshe. (5) [17] Ha o a dumellwa ho kopa Ka kopo phetla ### Page 8 Downloaded from hlayiso.com 8 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) POTSO YA 3 Lebelo kgahlanong le nako kerafo e latelang e bontsha motsamao wa bolo e akgetsweng ka ho tsepama tlase ho tloha ka hodimo ho moaho ebe e qhoma ha e thula fatshe. Se natse ditlamorao tsa kgohlano ya moya. NKA MOTSAMAO O YANG HODIMO ELE PHOSETHIFO. 12 Lebelo (m.s-1) 0 t Nako (s) -20 -25 3.1 Sebedisa TEKANYO YA MOTSAMAO FELA, bala: 3.1.1 Bophahamo ho tloha moo bolo e akgetsweng. (3) 3.1.2 Nako t kerafong. (5) 3.1.3 Boholo ba disepolasemente ya boloho ho tloha nako eo e akgelwang ho fihlela nako t. (4) 3.2 Teroya tulo kgahlanong le nako kerafo ya motsamao wa bolo ho tloha Nakong eo e akgelwang ho fihlela e fihetse bophahamo bo ka hodimodimo ka mora ho qhoma. SEBEDISA FATSHE ELE TULO YA NOTO. Bontsha tse latelang kerafong:  Bophahamo ho tloha ha bolo e akgelwa.  Nako t (3) [15] Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 9 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 9 POTSO YA 4 Setshwantsho se latelang se bontsha teroli A ya boima ba 2 kg e tsamayang ka lebelo la v m∙s−1 e yang botjhabela e tsepame ka lehlakore ho bokahodimo e thulana sa dipheleu le teroli B ya boima ba 4 kg e tsamayang ka lebelo la 5 m∙s−1 ho ya bophirima. Ka mora ho thulana, di teroli tse pedi di kopana mmoho mme di tsamaya ka lebelo la 1,67 m·s-1 ho ya bophirima. Thulano e tihiseditse 0,01 s. Se natse ditlamorao tsa kgohlano. 5 (m.s-1) v (m.s-1) B A 2 kg 4 kg 4.1 Bolela poringsipole ya consefeishine ya lineya momentamo ka mantswe. (2) 4.2 Bala: 4.2.1 Boholo ba lebelo v ba teroli A pele e thulana le teroli B. (4) 4.2.2 Fose e bang teroli B e e etsa ho teroli A (4) [10] Ha o a dumellwa ho kopa Ka kopo phetla ### Page 10 Downloaded from hlayiso.com 10 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) POTSO YA 5 Fose ya 62,5 N e etsahalang ho teroli ya boima ba m bo pharalele le bokahodimo bo sekameng jwalo ka ha ho bontshitswe ho boloka motsamao o yang tlase bokahodimong bo sekameng ka LEBELO LE SA FETOHENG. Bophahamo bo tsepameng ba bokahodimo bo sekameng ke 12 m. Sheba setshwantsho se latelang. Kaenetiki forikishinale fose ya 35,5 N e etsahala ho teroli e tsamayang e ya tlase bokahodimong bo sekameng. 62,5 N A 12 m 30° B 5.1 Ngola lebitso la consevethifo fose e etsahalang ho teroli. (1) 5.2 Bala mosebetsi o entsweng(work done) ke forikishinale fose ho teroli. (4) 5.3 Ngola fatshe phetoho ho matla a kaenetiki(kinetic energy) ha teroli e fihlela qetellong ya bokahodimo bo sekameng. (1) 5.4 Sebedisa mosebetsi-matla fiyoremo ho bala boima, m, ba teroli. (5) [11] Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 11 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 11 POTSO YA 6 6.1 Ditheketara ya modumo e emeng ntlheng e itseng e rekota 520 ya maqhubu a modumo ka motsotswana ho tloha ho mohlodi wa modumo o tsamayang o ntshang maqhubu a modumo wa forikwensi ya 480 Hz. 6.1.1 Ngola forikwensi ya maqhubu a modumo e rekotwang ke ditheketara ka Hz. (1) 6.1.2 Fana ka tlhaloso ya fenomenon e bontshang phetoho ya forikwensi e bonweng. (2) 6.1.3 Mohlodi wa modumo o ya ATAMELA kapa o ya HOLE le moshebelli? Fana ka lebaka laa Karabo. (2) 6.1.4 Bala lebelo leo mohlodi wa modumo o tsamayang ka lona. Nka lebelo la modumo e le 343 m·s-1. (5) 6.1.5 Ho tla etsahala eng ha weifolenfo ya maqhubu a modumo a entsweng ke mohladi wa modumo o fetohang ha forikwensi ya maqhubu a modumo aba hodimo ho 480 Hz? Ngola fatshe fela EKETSEHA, FOKOTSEHA kapa E DULA E LE JWALO. Hlalosa Karabo o sebedisa tekano ya maqhubu (wave equation). (2) 6.2 Mela ya di sepeketerale hotswa naleding e hole e shebuwe ho bokgubedu bo suthileng. Hlalosa lentswe le sehelletsweng. (2) 6.3 Ngola mosebetsi o le MONG wa Doppler efekete ho tsa meriyana. (1) [15] Ha o a dumellwa ho kopa Ka kopo phetla ### Page 12 Downloaded from hlayiso.com 12 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) POTSO YA 7 7.1 Sedikadikwe se senyane A se se nang le tjhatjhe ya -5 µC se leketlile ho tsepameng ho tloha ho seling ka mokgwa wa kgwele e bebe e thata. Ntlha ya P ke 100 mm hoya ka ho le letona ho sedikadikwe A jwalo ka ha ho bontshitswe setshwantshong sa 1 se latelang. SETSHWANTSHO SA 1 P A = -5 µC 100 mm 7.1.1 Na sedikadikwe se tjhatjhileng sa A se LAHLEHELWA kapa AMOHELA di elecketerone ho re ebe le tjhatjhe ya -5 µC? (1) 7.1.2 Bala dinomoro tsa di eleketorone tse lahlehileng kapa tse amohetsweng ke sedikadikwe sa A, ho fumala tjhatjhe ya -5 µC. (3) 7.1.3 Bala eleketiriki filite e ntlheng ya P, ka lebaka la sedikadikwe se tjhatjhileng sa A. (5) 7.2 Sedikadikwe se tshwanang sa B se nkileng tjhatjhe e sa tsejweng se behilwe hodima kalana e tliswang hautshwanyane le sedikadikwe sa A. sedikadikwe se tjhatjhileng sa A se bidikela ka ho le letona ebe se ya ema ele hore kgwele e etse enkele ya 30° le ho tsepama ho yang tlase, hape tsistipano e kgweleng ke 25 N. Sebaka se di pakeng tsa di dikadikwe tsa pedi tse tjhatjhileng ke 50 mm jwalo ka ha ho bontshitse setshwantshong sa 2 se latelang. SETSHWANTSHO SA 2 30° B A = -5 µC 50 mm 7.2.1 Ebe tjhatjhe e ho sedikadikwe B e PHOSITIFO kapa NEKETHIFO? Fana ka lebaka ho Karabo? (2) 7.2.2 Bala boholo ba tjhatjhe e sedikadikweng sa B. (6) [17] Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 13 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 13 POTSO YA 8 8.1 Lequlwana la ban aba sehlopha sa 12 se batla ho fumana efishiente kontaketara e ka sebediswang ele koile e tjhesang ya ketlele e bang baya e aha ho lukisetsa porojeke ya Eskom Expo. Ba ile ba kopanya di kontaketara tse tharo (A, B le C) seketeng yaba ba kala karente e fetang ho di kontaketara le potenshiale diferense ho tshela di kontaketareng. Diphetho di bontshitswe kerafong e latenag. A B Karente (A) C Potenshiyale diferense (V) 8.1.1 Reya tse PEDI tsa di barebole tse tlamehang ho se fetohe ho etsa hore phuphutso e sebe le eme. (2) 8.1.2 Ngola fisikale kwantiti e emetsweng ke moepa wa kerafo ka nngwe. (1) 8.1.3 Ke efe ele NNGWE ya di kontaketara e ifishente ho ka sebediswa bakeng sa ho tjhesa koile ya ketlele? Fana ka lebaka karabong. (2) 8.2 Setshwantsho sa sekete se latelang se bontsha ho kopana ha di resistara ka serisi le pharalele. Leshala le na le emf ya 12 V le resistense e ka hare e sa tsebisahaleng r. 𝜺 = 12 V r 1,5 A A X S 2Ω 3Ω 4Ω Y Ha o a dumellwa ho kopa Ka kopo phetla ### Page 14 Downloaded from hlayiso.com 14 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) Ha switjhe S e BUTSWE, ammeta A e bala 1,5 A. Bala: 8.2.1 Kakaretso ya resistense seketeng. (3) 8.2.2 Resistense e ka hare ya leshala. (4) 8.2.3 Matla a ileng a lahlwa ke 3 Ω resista ka metsotso e 3. (3) 8.3 Switjhe S e KWETSWE jwale. E NGWE LE E NGWE ya tse latelang e tla ameha jwang? Ngola fela EKETSEHA, FOKOTSEHA kapa E DULA E TSHWANA. 8.3.1 Kakaretso ya resistense seketeng (1) 8.3.2 Palo ya ammeta A (1) 8.4 Terata e kontaketang e nang le resistense e sa tsotellweng ha a jwale e kopantswe dipakeng tsa ntlha X le Y jwalo ka ha ho bontshitswe setshwantshong se ka hodimo. Sena se tla ama motjheso wa leshala jwang? Ngola fela EKETSEHA, FOKOTSEHA kapa E DULA E TSHWANA. Hlalosa Karabo. (3) [20] Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 15 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 15 POTSO YA 9 Jeneretara ya AC e ho koale-fayate seteshine e fana ka matla a motlakase naheng ya rona. 9.1 Fana ka matla a konbeshine a etsahalang ha jeneretara e sebetsa. (2) 9.2 Fana ka e le NNGWE ya phapang seeming dipakeng tsa AC jeneretara le DC jeneretara. (1) 9.3 Taka setshwantsho sa kerafo ya potenshiale diferecse kgahlanong le nako ho AC jeneretara. Ka hloko bontsha di akisisi le ho ngola Vmax ho potenshiale diferense akisisi. (2) Elekitirikale apolaense e fuwe 2 000 W, 230 V. Apolaense e kopantswe ho aletenaiting karente phawara sose. Bala: 9.4 Karentse e hodimo (Imax) e entsweng ke jeneretara. (4) 9.5 Boletheje e hodimo (Vmax) e tswang ho jeneretara. (3) [12] Ha o a dumellwa ho kopa Ka kopo phetla ### Page 16 Downloaded from hlayiso.com 16 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) POTSO YA 10 Lequlwana la baithuti le entse patlisiso ya ho fumana kamano dipakeng tsa inbese  1   ya weifolenfo    ya insidente fothose ho tshepe le matla a kaenetiki a hodimo (Ek(max)) a ntshitsweng ke difothoeleketorone ho bokahodimo ba poleiti ya tshepe. Ba bontshitse diphetho tsa bona jwalo ka ha ho bontshitswe kerafong. Ek(max) (J) X 1 (m-1) λ C 10.1 Ke fisikale kwantiti efe e emetsweng ke tlhaku C (inthasepote ya akisisi e yang hodimo ka hotsepama) kerafong? Sebedisa tekano e nepahetseng ho hlalosa Karabo. (3) 10.2 Kganya ya di fothone tsa futikwensi ya 6,16 x 1014 Hz di insidente ho poleiti ya tshepe le difothoeleketorone di ntshuwe ka matla a kaenetic a maholo ba 5,6 x 10-20 J. Bala boholo ba fisikale kwantiti e emetsweng ke tlhaku X kerafong. (5) 10.3 Ho kganya hwa kganya ya insidente jwale ho ekeditswe. Ke kameho efe etla etsahala ka lebaka la phetoho e latelang? (Ngola fela EKETSEHA, FOKOTSEHA kapa E DULA E TSHWANA.) 10.3.1 Ho sekama hwa kerafo. Hlalosa Karabo. (2) 10.3.2 Matla a kaenetiki a hodimo a ntshitseng difotoeleketerone. Taka kerafo ya kamano dipakeng tsa ho kganya hwa insidente fothons le matla a kaenetiki a maholo a difothoeleketerone ho hlalosa Karabo ya hao. (3) [13] KAKARETSO YA MATSHWAO: 150 Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 17 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 17 TLHAHISO LESEDING YA THUTO TSA MAHLALE SEHLOPHA SA 12 PAMPIRI YA 1 (PHYSICS) TAFOLE 1: DI FISIKALE KONSETENTE LEBITSO LETSHWAO BOLENG Acceleration due to gravity g 9,8 m•s-2 Unifesale kerafitashinale constant G 6,67 × 10-11 N•m2.kg-2 Lebelo l a kganya ka hara vacuum c 3,0 × 108 m•s-1 Planck's constant/Lenane le sa fetoheng la h 6,63 × 10-34 J•s Plank Coulomb's constant/Lenane le sa fetoheng k 9,0 × 109 N•m2•C-2 la Coulomb tjhatjhe ho eleketorone e -1,6 × 10-19 C Eleketerone mass me 9,11 × 10-31 kg Boima ba lefatshe M 5,98 × 1024 kg Radiyase ya lefatshe RE 6,38 × 103 km Ha o a dumellwa ho kopa Ka kopo phetla ### Page 18 Downloaded from hlayiso.com 18 THUTO YA TSA MAHLALE P1 (EC/LOETSE 2021) TAFOLE 2: DIFOROMO MOTSAMAO v f  vi  a t Δx  v i Δt  21 at 2 or/of Δy  v i Δt  21 at 2  v  vf   v  vf  v f  v i  2ax or/of v f  v i  2ay 2 2 2 2 Δx   i  Δt or/of Δy   i  Δt  2   2  FOSE Fnet  ma p  mv fsmax = µsN fk = µkN Fnet t  p w  mg p  mv f  mv i Gm 1 m 2 M F 2 g = G d2 d MOSEBETSI, MATLA LE PHAWA W = FΔxcosθ U  mgh or/of EP  mgh Wnet  K or/of Wnet  Ek 1 1 K  mv2 or/of Ek  mv2 2 2 K  K f  K i or/of Ek  Ekf  Eki W Wnc  K  U or/of Wnc  Ek  Ep P t Pave = Fvave ELEKETEROSETETIKI kQ1Q 2 kQ F E r2 r2 V F E E d q W Q V n= q qe Ha o a dumellwa ho Kopa Ka kopo phetla ### Page 19 Downloaded from hlayiso.com (EC/LOETSE 2021) THUTO YA TSA MAHALA P1 19 ELEKETIRIKI SEKETE emf (ε) = I(R + r) V R I emk (ε) = I(R + r) R s  R1  R 2  ... 1 1 1 q = IΔt    .. . R p R1 R 2 W = Vq W P Δt W = VI  t P = VI W= I2R  t P = I2R W= V Δt 2 V2 P R R ALETENAITING KARENTE I max Paverage  Vrms I rms I rms  / I I wgk  maks 2 2 Paverage  I rms 2 R Vmax Vmaks Vrms  / Vwgk  2 Vrms 2 2 Paverage  R Ha o a dumellwa ho kopa Ka kopo phetla ## Related documents - [Physical Sciences P1 May June 2021 Eng](https://www.hlayiso.com/library/physical-sciences-p1-may-june-2021-eng/f4b97e24-79cc-40f8-86c0-9185416a66a1) — Physical Sciences · QP · 2021 · Eng - [PHYS SCIENCES P1 QP GR12 SEPT 2023 Xhosa](https://www.hlayiso.com/library/phys-sciences-p1-qp-gr12-sept-2023-xhosa/2bbd2fc3-2b94-4d0c-9012-591942a529e4) — Physical Sciences · QP · 2023 - [NW NSC GR 12 PS P1 memo 21](https://www.hlayiso.com/library/nw-nsc-gr-12-ps-p1-memo-21/edaa5a71-c3e8-43a6-b32a-09bfea08a19f) — Physical Sciences · Memo · 2021 - [PHY SC P1 MEMO GR 12 SEPT 2025 E+A watermark](https://www.hlayiso.com/library/phy-sc-p1-memo-gr-12-sept-2025-e-a-watermark/ee8fc295-8eb6-4163-acb0-c6d2b3dec26f) — Physical Sciences · Memo · 2025 - [Physical Sciences P1 Memo](https://www.hlayiso.com/library/physical-sciences-p1-memo/2d2b7939-aa98-49f1-afa7-ca27e7f59489) — Physical Sciences · Memo · 2017 - [PHYS SC P1 MEMO ENGAFR](https://www.hlayiso.com/library/phys-sc-p1-memo-engafr/da9b9ae0-718d-442a-95bc-aa0bfbf308f3) — Physical Sciences · Memo · 2014 ## More from Grade 12 Physical Sciences - [Pysical Sciences P2 Memo AfrEng watermark](https://www.hlayiso.com/library/pysical-sciences-p2-memo-afreng-watermark/cb0c7842-3512-4579-a012-a91b31f09008) — Memo · 2025 - [Physical Sciences Physics Grade 12 NSC MEMO P1 May June 2025 Limpopo](https://www.hlayiso.com/library/physical-sciences-physics-grade-12-nsc-memo-p1-may-june-2025-limpopo/82f7a5dc-e27f-400b-84ae-bcf3217097d6) — Memo · 2025 - [Physical Sciences Physics Grade 12 NSC MEMO P2 May June 2025 Limpopo](https://www.hlayiso.com/library/physical-sciences-physics-grade-12-nsc-memo-p2-may-june-2025-limpopo/f2cd1409-6db0-4f23-b078-ce944b93c2b5) — Memo · 2025 - [Physics Grade 12 NSC P1 MEMO September 2025 Limpopo](https://www.hlayiso.com/library/physics-grade-12-nsc-p1-memo-september-2025-limpopo/ee326b2b-8480-42f2-8ce0-7bcf6229bde6) — Memo · 2025 - [Physical Sciences Physics Grade 12 NSC MEMO March 2025 Mpumalanga](https://www.hlayiso.com/library/physical-sciences-physics-grade-12-nsc-memo-march-2025-mpumalanga/88039ede-226f-4c60-918e-92c8ef3e11cc) — Memo · 2025 - [Physical Sciences Physics Grade 12 NSC QP March 2025 Mpumalanga](https://www.hlayiso.com/library/physical-sciences-physics-grade-12-nsc-qp-march-2025-mpumalanga/f082b040-bae3-431b-9df9-32c20bbfe5c3) — QP · 2025 ## Collection - [Grade 12 past papers](https://www.hlayiso.com/grade-12/past-papers) --- Hlayiso: free CAPS and IEB past papers, memos, notes and study guides for South African learners. 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