Physical Sciences Grade 10 P1 Gauteng June 2018 Memo (Afr)

Downloaded from hlayiso.com GAUTENG DEPARTMENT OF EDUCATION GAUTENGSE DEPARTEMENT VAN ONDERWYS PROVINCIAL EXAMINATION PROVINSIALE EKSAMEN JUNE / JUNIE 2018 GRADE / GRAAD 10 PHYSICAL SCIENCES FISIESE WETENSKAPPE PAPER / VRAESTEL 1 MEMORANDUM 7 pages / bladsye 1

Downloaded from hlayiso.com PHYSICAL SCIENCES / FISIESE WETENSKAPPE MEMORANDUM (PAPER / VRAESTEL 1) GRADE / GRAAD 10 GAUTENG DEPARTMENT OF EDUCATION GAUTENGSE DEPARTEMENT VAN ONDERWYS PROVINCIAL EXAMINATION PROVINSIALE EKSAMEN PHYSICAL SCIENCES / FISIESE WETENSKAPPE (Paper / Vraestel 1) QUESTION / VRAAG 1 1.1 D  1.2 A 1.3 A 1.4 B 1.5 D 1.6 C 1.7 C 1.8 D  1.9 A 1.10 B [20] QUESTION / VRAAG 2 2.1 The distance between two consecutive / successive points that are in-phase.  Die afstand tussen twee opeenvolgende punte in fase  (2) 2.2 2.2.1 =  = 0,15 m  (2) 2.2.2 POSITIVE MARKING FROM 2.2.1 POSITIEWE NASIEN VANAF 2.2.1 v = f.  0,225 = f (0,15)  f = 1,5 Hz  (3) 2.3 2.3.1 Upwards / beweeg opwaarts  (1) 2.3.2 A and / en D  (1) 2

Downloaded from hlayiso.com PHYSICAL SCIENCES / FISIESE WETENSKAPPE MEMORANDUM (PAPER / VRAESTEL 1) GRADE / GRAAD 10 2.4 2.4.1 OPTION / OPSIE 1 OPTION / OPSIE 2 =  aantal pulse =   tyd = 2,5 Hz  = 2,5 Hz (3) 2.4.2 POSITIVE MARKING FROM 2.4.1/ POSITIEWE NASIEN VANAF 2.4.1 v = f.  12 = 2,5.  = 4,8 m  (3) 2.5 The maximum displacement / distance of disturbance of particles of the medium from rest / equilibrium position.  Die maksimum versteuring vanaf rus maksimum verplasing van deeltjies vanaf rus / of ekwilibrium posisie.  (2) 2.6 20 m  (2) [19] QUESTION / VRAAG 3 3.1 A single disturbance that occurs in a medium wherein particles of the medium move perpendicular to the direction of propagation.  ʼn Enkele versteuring in ʼn medium waartydens die deeltjies van die medium loodreg beweeg tot die rigting van voortplanting van die puls  (2) 3.2 Superposition / (destructive) interference  / Superposisie/ Destruktiewe interferensie  (1) 3.3 Resultant amplitude/ Resulterende amplitude = 12 + (-8)  = (+) 4 cm  (2) 3.4 v =  v =  v = 0,4 m.  (3) 3.5 3.5.1 Longitudinal wave / longitudinale golf  (1) 3

Downloaded from hlayiso.com PHYSICAL SCIENCES / FISIESE WETENSKAPPE MEMORANDUM (PAPER / VRAESTEL 1) GRADE / GRAAD 10 3.5.2 R – compression/ Verdigting  S – rarefaction / verdunning  (2) 3.5.3 T =  T =  T = 0,01 s  (3) 3.6 Light travels faster than sound  / lig beweeg vinniger as klank  (2) [16] QUESTION / VRAAG 4 4.1 A compass needle points along the earth's magnetic  axis so that the north end of the magnet aligns with the earth’s magnetic field. / ʼn Kompas dui die Aarde  se magnetise noord aan. Die naald wys in die rigting van die magnetiese noord.  (2) 4.2 Direction of lines in at south pole, out at north pole / Rigting van lyne in by suidpool, uit by noordpool  Correct shape for field pattern as shown / Korrekte vorm vir veldpatroon soos aangedui  (3) 4.3 Yes / Ja  (1) [6] 4

Downloaded from hlayiso.com PHYSICAL SCIENCES / FISIESE WETENSKAPPE MEMORANDUM (PAPER / VRAESTEL 1) GRADE / GRAAD 10 QUESTION / VRAAG 5 5.1 Less than / minder as NEGATIVE MARKING / NEGATIEWE NASIEN - Sphere B is positively charged, it has excess protons / has lost electrons  - Sfeer B is positief gelaai, daar is minder elektrone / dit het elektrone verloor (2) 5.2 5.2.1 The net charge of an isolated system remains constant during any physical process. Die netto lading van ʼn geïsoleerde sisteem bly konstant gedurende enige fisiese proses. (2) 5.2.2 C to / na B  (1) 5.2.3 - sphere C has a negative charge, thus has excess electrons which are shared equally  only electrons can flow  - sfeer C het ʼn negatiewe lading, daar is dus ʼn oorvloed elektrone wat gelyk versprei is.  net elektrone mag beweeg  (2) 5.2.4 QB = Q C =  =  = C  (3) 5.2.5 n =  n =  or / of n = electrons / elektrone  (3) [13] 5

Downloaded from hlayiso.com PHYSICAL SCIENCES / FISIESE WETENSKAPPE MEMORANDUM (PAPER / VRAESTEL 1) GRADE / GRAAD 10 QUESTION / VRAAG 6 6.1 6.1.1 Radio waves/ radiogolwe  (1) 6.1.2 Radio waves have a longer wavelength and can be transmitted over long distances./ Radiogolwe het ʼn langer golflengte en kan oor ʼn lang afstand beweeg.  (1) 6.2 6.2.1 A particle of light energy. / elementêre deeltjie (kragdraer) van ligenergie  (2) 6.2.2 3 x 108 m.s 1  (2) 6.2.3 E  h.c.  34 1,46 x1024  6,63x10 .3 x10  2 0,136 m  (3) 6.3 Decrease / Verminder  (2) NEGATIVE MARKING / NEGATIEWE NASIEN - Wavelength is inversely proportional to energy / penetrating ability. / - Golflengte in omgekeerd eweredig aan energie / penetrasievermoë  (2) [13] QUESTION / VRAAG 7 7.1 7.1.1 Energy transferred per coulomb of charge. / Energie oorgedra per Coulomb lading  OR Is the work done in moving a unit charge  between two points.  Die werk verrig om ʼn eenheid lading  tussen twee punte te beweeg.  (2) 6

Downloaded from hlayiso.com PHYSICAL SCIENCES / FISIESE WETENSKAPPE MEMORANDUM (PAPER / VRAESTEL 1) GRADE / GRAAD 10 7.1.2 V = WQ  V = 90 20  V = 4,5 V (3) 7.1.3 POSITIVE MARKING FROM 7.1.2 / POSITIEWE NASIEN VANAF 7.1.2 p.d = 4,5 3  = 1,5 V  (2) 7.2.1 I= Q t  40  = 30 = 0,75 A  7.2.2 POSITIVE MARKING FROM 7.1.2 AND 7.2.1 / NEGATIEWE NASIEN 1 Rp  R11  R12  1 Rp  121  121  Rp  6  (3) 7.3 Dimmer  / Dowwer  (1) 7.4 NEGATIVE MARKING/ NEGATIEWE NASIEN - The effective resistance will increase  and the total current will remain the same  / - Die effektiewe weerstand sal toeneem en die totale stroomsterkte bly dieselfde  (2) [16] TOTAL SECTION B / TOTAAL AFDELING B: 80 TOTAL / TOTAAL: 100 7