Physical Sciences Grade 10 P1 2017 Memo

“~te basic education & by Department: Uh) Basic Education SS REPUBLIC OF SOUTH AFRICA NATIONAL SENIOR CERTIFICATE/ NASIONALE SENIOR SERTIFIKAAT GRADE/GRAAD 10 eS SS SRS Ras SS Ts Sa EE RREE « PHYSICAL SCIENCES: PHYSICS (P14) : " FISIESE WETENSKAPPE: FISIKA (V1) : iH NOVEMBER 2017 * n MARKING GUIDELINES/NASIENRIGL YNE " MARKS/PUNTE: 150 APPROVED MARKING GUIDELINE These marking guidelines consist of 13 pages. Hierdie nasienriglyne bestaan uit 13 bladsye. So. Bee ie : ow wl ol Sd ee \ L \e a Copyright reserved/Kopiereg voorbehou Please turn over/Biaai om asseblief

Physical Sciences P1/Fisiese Wetenskappe V1 2DBE/November 2017 CAPS/KABV ~ Grade/Graad 10 — Marking Guidelines/Nasienriglyne QUESTION/IVRAAG 1 1.1 BYvY (2) 1.2 Cvv (2) 1.3 AVY (2) 1.4 Dvv (2) 1.5 Cv¥v (2) 1.6 cvy (2) 170 Av (2) 1.8 Cv¥v (2) 1.9 Dvv (2) 1.10 Dvv (2) [20] Copyright reserved/Kopiereg voorbehou g,

Physical Sciences P1/Fisiese Wetenskappe V1 3 DBE/November 2017 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne QUESTION/VRAAG 2 2.1 The total distance travelled per total timev” Die totale afstand beweeg per totale tyd. Vv OR/IOF The distance travelled divided by the total timev ” Die afstand beweeg gedeel deur die totale tyd. VV (2) 2.2 A /Gemiddele d= distance travelled/afstand erage speed/Gemiddelde spoed = time taken/tyd _ (500 + 800)” ~ (30 x 60)¥ =0,72 msi v (4) 2.3. | MARK ALLOCATION: PUNTETOEKENNING: | ¥1x correct scale length for 800 m ¥1 x korrekte skaal vir 800 m v1 x arrow and ¥1 x pylpunt ¥1x 800m (3) ¥1x 800m ~--- 500m Le « 800 m 1 300 @®--------------- meee -- +e ee > (3) 24 POSITIVE MARKING FROM QUESTION 2.2 POSITIEWE NASIEN VANAF VRAAG 2.2 distance travelled/afstand Average speed/Gemiddelde spoed = time taken/tyd O72v = (00 + 500 + 1 300) v time taken/tyd t=3 194,445 v (4) [13] Copyright reserved/Kopiereg voorbehou Please turn over/Biaai om asseblief Me

Physical Sciences P1/Fisiese Wetenskappe V1 4 DBE/November 2017 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne QUESTION/VRAAG 3 3.1 (Average) velocity v/(Gemiddelde) snetheid ¥ (1) 3.2.1. Time W/Tyd v (1) 3.2.2 Position v/Posisie v (Accept: Change in position/Aanvaar verandering in posisie)) (1) 3.3 4 ‘g = = 4 Ps 2 < el & $ 3 3 g é c : Time (s)/Tyd (s) ¥ 1xcorrect y-axis label and unit ¥ 1x y-as benoem en eenheid | MARK ALLOCATION: PUNTETOEKENNING: ¥ 1xcorrect x-axis label and unit || “ 1x x-as benoem en eenheid vv 2x points plotted and joined vv 2x punte geplot en verbind v¥ 1xshape of graph ¥ 1x vorm van grafiek 6) - A 34 GradientiHelling = “Y v Ax 20-5” = rar Accept: other sets of values/Aanvaar: 7 enige ste! korrekte waardes =5(ms') ¥ (4) Copyright reserved/Kopiereg voorbehou Please turn over/Blaai om asseblief HE D

Physical Sciences P1/Fisiese Wetenskappe V1 5 DBE/November 2017 CAPS/KABV ~ Grade/Graad 10 — Marking Guidelines/Nasienriglyne 3.5 a Velocity/ ! snetheid H (m:s*) H ! 3 Y Correct shape/korrekte vorm Time (s)/Tyd (s) Vv Axes/Asse (2) 3.6 The car has zero (acceleration)/ 0 m-s? v “as its velocity is constant. Die motor het geen versnelling /O_m:s? Vv “nie as gevolg van 'n konstante snelheid. (2) [16] QUESTION/VRAAG 4 4.1 Rate of change of velocity ¥v/Tempo van verandering in snetheid VY (2) 42.1 axe vate Laaty 1 Ax= O(2)¥+ 5 (19)2°¥ Ax = 30 mv (4) 4.2.2 POSITIVE MARKING FROM QUESTION 4.2.1 POSITIEWE NASIEN VANAF VRAAG 4.2.1 ___.., [OPTION 1/OPSIE 1 OPTION 2/OPSIE 2_ —_ @ [| vP= vi2+2aAxY Vz Vv jtaAt v= 02v+2(15)(30)” = OV + 15x2v | |v; = 30 m:s" to the right” regs Vv; = 30 m-s" to the right” /regs | OPTION 3/OPSIE 3 Vit V¥ = v ax=(S ) at Ov+ vy = v 30 ( 7) )2 Vv; = 30 m:s" to the right” /regs Accept: To the right/East/In the direction of motion Aanvaar: Regs/Oos/in die bewegingsrigting (4) 4.3 When following a car, a motorist should keep a safe distance such that it takes more than 2sv to reach the same position “as the car in front. Motoriste moet ‘n veilige afstand tussen ander voertuie handhaaf, sodat dit meer as 2 sekondes v sal neem om dieselfde posisiev as die voertuig voor jou te bereik. (2) Copyright reserved/Kopiereg voorbehou Please turn over/Blaai om asseblief y “

Physical Sciences P1/Fisiese Wetenskappe V1 6 DBE/November 2017 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne OR/OF The car will need 2 s to stop in an emergency and not hit the car in front. vv Die motor het 2 sekondes nodig om in 'n noodsituasie tot stilstand te kom, sonder om die voertuig voor jou te stamp.v Vv 4.4 Convert 90 km-h" into m-s“/Skakel 90 km-ht om na m-st 90km_ 90x 10°_ Saee agg = 2emsvY OPTION 4/OPSIE 1: OPTION 2/OPSIE 2: AX= vAtt Faaty Ax= ) At’ AX= (25)(2)¥+ Fo) AX= e = ) Y(2)¥ Ax = 50 mv Ax = 50 m¥ 6) 45 POSITIVE MARKING FROM QUESTION 4.4 POSITIEWE NASIEN VANAF VRAAG 4.4 108 km_ 108 x 10° Th —-3600 Difference in speed/Verskil in spoed: 30 — 25 =5ms'v Car has to travel 30 m (80 — 50) at 5 ms"'to be at a 2 second distance behind the truck. Therefore: distance = (v) (t) ¥ 30v = (5) (t) t=6sv Motor moet 30 m (80 - 50) teen 5 m-s'ry om 2 sekonde-afstand agter trok te wees. Daarom: afstand = (v) (t) ¥ =30mstv 30 v= (5) (t) t=6sv (5) [21] QUESTION/VRAAG 5 5.1 The energy an object has as a result of its motion. “¥” Die energie wat 'n voorwerp het as gevolg van sy beweging. vv (2) 6.2 Ep = mghv =72x9,8 x 100” = 70 560 Jv (3) 5.3 The sum of the gravitational potential energy and kinetic energy” in an isolated (2) Copyright reserved/Kopiereg voorbehou Please turn over/Biaai om asseblief gZ le

Physical Sciences P1/Fisiese Wetenskappe V1 7 DBE/November 2017 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne system is constant. v Die som van die gravitasie-potensiéle_energie en kinetiese_ energie Y in 'n geisoleerde/gesiote stelsel bly behoue/konstant. ¥ ORIOF The total mechanical energy of an isolated system remains constant. VW Die totale meganiese energie in ‘n geisoleerde/gesiote stelsel bly behoue/konstant. ¥V Copyright reserved/Kopiereg voorbehou Please turn over/Biaaj om asseblief

Physical Sciences P1/Fisiese Wetenskappe V1 8 DBE/November 2017 CAPS/KABV — Grade/Graad 10 - Marking Guidelines/Nasienriglyne 5.4 POSITIVE MARKING FROM QUESTION 5.2 POSITIEWE NASIEN VANAF VRAAG 5.2 (Ep + Ex)topioa = (Ep + Ek)bottom/onder ia mgh + 0 =mgh + %mv2 v 70 560 v¥ =(72)(9,8)(50) v¥+%x72xv? v v=31,3mst v (8) 5.5 S [-3 Ww Ex (J) Marking criteria for graph Nasienkriteria vir grafiek Axes with correct/appropriate labels v Asse met korrekte/toepaslike byskrifte Straight line with decreasing slope vv Reguitlyn met afnemende helling Lines not touching (deduct a mark) Indien lyne nie die asse raak (trek een punt af) (3) [15] QUESTION/VRAAG 6 6.1 Superposition of pulses.“ Algebraic sum of the amplitudes of two pulses that occupy the same space at the same time. VW” Accept: Interference of waves” Phenomenon where the crest of one pulse overlaps with the trough of another, resulting in a pulse of reduced amplitude. vv Superposisie van pulse.v Die algabraiese som van die amplitudes van twee pulse wat in dieselfde ruimte op dieselfde tyd is. vv Aanvaar: Interferensie van pulsev Die verskynse!l waar die kruin van een puls kruis met die trog van ‘n ander. Die gevolg is ‘n pulse met ‘n verminderde amplitude. vv (3) Copyright reserved/Kopiereg voorbehou Please turn over/Biaai om asseblief be

Physical Sciences P1/Fisiese Wetenskappe V1 9 DBE/November 2017 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne 6.2 Pan (2) ar (Shape/Vorm) ¥ 6.3 Destructive (interference) “/Destruktiewe (interferensie) “ (1) 6.4 Amplitude = (+4) + (-6) = 2cmv¥v — (Accept/Aanvaar. - 2 cm) (Marks/Punte: 2 or/of 0) (2) 6.5 REMAINS THE SAMEW/BLY DIESELFDE ¥ (1) [9] QUESTION/VRAAG 7 7.1 Sound with frequencies that are higher than what is audible to the human ear. vv Klank met frekwensies wat hoér is as wat vir die menslike oor hoorbaar is. VV (2) 7.2 v=fav 1480 v = 130 000A v “R= 0,011 mv 4) 7.3 distance/afstand —_—_ v Speed/Spoed time/tyd 4 480v = distance/afstand 2v «. distance/afstand = 2 960 mv (4) Copyright reserved/Kopiereg voorbehou Please turn over/Biaai om asseblief

Physical Sciences P1/Fisiese Wetenskappe V1 10 DBE/November 2017 74 7.5 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne e The speed of sound in air is slowerv, as air is less dense “and the particles are further apart. Die spoed van klank in lug is stadiger” as in water, omdat lug minder dig “ is/deeltjies is verder van mekaar af. OR/ OF e The speed of sound in sea water is faster”, as sea water is denser wand the particles are closer together. Die spoed van klank in water is vinniger’_as lug, omdat water meer dig isv/ die deeltjies nader aan mekaar is. (2) Doiphins send out a sound frequency”/Dolfyne stuur klankgolwe uit V The sound reflects off the prey and returns to the dolphiny Die klank weerkaats vanaf die prooi terug na die dolfyn toe.” ¢ The dolphin estimates distance from prey by using time for echo to return Die dolfyn skat dan die afstand tussen sy prooi en homself deur die tyd te gebruik wat die eqgo geneem het om te weerkaats. V (3) [15] QUESTION/VRAAG 8 8.1.1 8.1.2 8.2.1 8.2.2 8.2.3 Infrared waves” /Infrarooi golwe Vv (1) Radio waves OR microwaves~/Radiogolwe OF mikrogolwe (1) Packet of energy found in lightvv Pakkie energie wat in lig aangetref word. Vv (2) OPTION 1/OPSIE 1: , OPTION 2/OPSIE 2: c=hxiy E= he 3 x 108 = Fx 620 x 10°Y A f= 4,84 x 1014 Hz E =hfv = 6,63 x 10°34v x 4,84 x 1014 E=321x10% J) v = 3,21 x 10°19 Jv 34 8 = ©:63x 10 3x10 y 620 x 10°” (6) e Laser light has high frequency and can penetrate soft tissues of humans” Laserlig het 'n hoér frekwensie“ en kan sagte weefsel indring e This can lead to damage of eye tissue” Dit kan_skade aan oogweefsel veroorsaak ” (2) [12] Pleage turn over/Blaai om asseblief | i

Physical Sciences P1/Fisiese Wetenskappe V1 11 DBE/November 2017 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne QUESTION/VRAAG 9 9.1 9.2 9.3.1 9.3.2 9.3.3 Magnetic field: A region in space where another magnet or ferromagnetic substance can experience a magnetic force. vv Magneetveld: 'n Gebied in die ruimte waar 'n magneet of ferromagnetiese materiaal 'n magnetise krag sal ondervind.v ¥ W- Xe MARK ALLOCATION: | PUNTETOEKENNING: ¥ 1x lines not touching ¥ 1x lyne raak nie v 1x curved magnetic lines v 71x vorm van magneetveldlyne Y 1x field direction away from ¥ 1x veldrigting weg van die N- north pool | Magnetic force is inversely proportional “ to the distance (or square of the distance) between two magnets. OR If the distance between the magnets increases, the force decreases. Magnetiese krag is omgekeerd_eweredig Vv aan die afstand tussen twee magnete. OF Indien die afstand tussen die magnete toeneem, sal die krag afneem. O1NY 10 cmv QUESTION/VRAAG 10 10.1 10.2 Copyright reserved/Kopiereg voorbehou Neutral object: Has equal amount of both protons and electrons” Charged object: Has either gained or lost electrons. ¥ Neutrale voorwerp: Gelyke hoeveelhede protone en elektrone. ¥ Gelaaide voorwerpe het elektrone gewen of verloor.“ Gain v/Bygevoeg ¥ Please turn over/Blaai om asseblief (2) (3) (1) (1) (1) [8] (2) (1) iM

Physical Sciences P1/Fisiese Wetenskappe V1 12 DBE/November 2017 CAPS/KABV — Grade/Graad 10 ~ Marking Guidelines/Nasienriglyne 10.3 n= Qy, e 15 n= 3,5 x 10 ev 1,6x 10° =21875 ~v (electrons/elektrone ) (3) 10.4.1. When the charged plastic ruler is brought closer to the uncharged pieces of Paper, the paper is polarised.“ The negative charges on the paper are repelled by the negative charges on the ruler. “ This leaves the side of the paper closest to the ruler positive. VW Die stukkies papier word gepolariseer “ sodra die gelaaide liniaal nader gebring word. Die negatiewe ladings van die papiertjies word afgestoot ~ deur die negatief gelaaide |finiaal. Dit laat die kant van die papier wat na die liniaal toe wys positief V en die papier word aangetrek. (3) 10.4.2 Photocopier” /Fotostaatmasjien ¥ Finger printing/Vingerafdrukke Spray painting/Spuitverf (Any one/Enige een) (1) [10] QUESTION/VRAAG 11 11.1 Work done per unit charge by the source (battery) vv Die arbeid verrig per eenheidslading deur die bron (battery) Vv (2) 11.2 1 1 1 — —=—+ — Rp Ri Ro lee Rix Re PR, +R, 1 1 “T5' Ts” _1,5x 1,5 v | , , 1,5+ 1,5 o24 2 “Re = 0,750 v 3.3 = 4 _ ~3 3 “Rp = 7" 0,750 v (2) 11.3.1 15AVv (1) Copyright reserved/Kopiereg voorbehou Piease turn over/Blaai om asseblief he

Physical Sciences P1/Fisiese Wetenskappe V1 13 DBE/November 2017 11.3.2 11.4 CAPS/KABV — Grade/Graad 10 — Marking Guidelines/Nasienriglyne Vq= Vy + Vo Q=V, + 2, ¥ 9=3V, ¥ Vy =3. VW Accept:/Aanvaar V=IRVY V = 1,5(2) v V= 3V¥ (3) e INCREASEY/TOENEEM ¥ If 1,5 Q resistor is added, the resistance of the whole circuit decreases “ Indien 1,5 Q resistor bygevoeg word, neem die totale weerstand van die stroombaan af. v e SinceRa t if R decreases, .. Vis constant and | of the circuit increases” Aangesien R a 5 indien R afneem en V konstant bly, sal | _van_ die stroombaan toeneem. ¥ (3) 111] TOTALITOTAAL: 150 NOTE: Some provinces felt that 11.4 was an unfair question because it is not within the curriculum of grade 10 physical sciences. Therefore, these provinces can opt to exclude question 11.4 and mark the paper of the total of 147 and scale the total to 150. Copyright reserved/Kopiereg voorbehou Please turn over/Blaai om asseblief