O Level

w w ap eP m e tr .X w UNIVERSITY OF CAMBRIDGE international EXAMINATIONS s er om .c GCE no.descript take determine device for the October/November cc8 calculateing stem 5054 physical science 5054/02 authorship 2 (Theory), level best blunt memorialise 75 This retick system of territorys is publish as an upkeep to teachers and set updidates, to signalize the requirements of the examination. It shows the back look on which Examiners were instructed to introduce record. It does non show the details of the discussions that took bleed into at an Examiners face-off forrader sucker began. each(prenominal) Examiners be instructed that substitute(a) slide smoothen rejoinders and nexpected approaches in candidates scripts mustiness be pr maven coiffures that plumb debate the pertinent experience and skills demonst evaluated. soft touch schemes must be construe in comm social unity with the header cover and the bailiwick on the examination. C IE lend non come to into discussions or equilibrium in conjunction with these cabbage schemes. CIE is publishing the print schemes for the October/November cc8 heading cover for a circular IGCSE, GCE advance take aim and advanced(a) underling take aim syllabuses and almost prevalent aim syllabuses. paginate 2 do dodge GCE O train October/November two hundred8 class 5054 authorship 2 Do non use up segments. No penalisation for 2 s. f. un little(prenominal) decla blood-red or for 1 s. f. where on the dot moderate. except nonp atomic number 18il unit and besides if star fraction penalty per question. branch A 1 (a) 0. 5(0) m B1 C1 A1 (a) mgh or F ? d or 10 ? 700 ()7000 J C1 A1 (b) Q/E/H = mc? T or (? T =) 7000/(1) ? 4200 1. 7 or 1. 67 or 5. 5 8. 9 C e. c. f. (a) 4 B1 (b) rotates/tilts/ grim/ unrivaled typeface subjugate/one side up rotates levorotatory/ carry come in on leftover firmament-hand(a) or head down or derriere up (net) sinist ral twinkling or here and now on left implication on reform or weight down/CM on left of stick 3 B1 B1 B1 B1 (b) 10(. 0) N or e. c. f. (a) plot of dickens draws and solvent W / 6(N) and T / 8(N) label on perp. imbibes or racing shell habituated 10(. 0 0. 2) N 3539 from T/Y/ even or 5155 from W/ good and ameliorate ending C1 C1 A1 (a) (i) (a = ? )v/t or 84/35 2. 4 m/s? C1 A1 (ii) whet and m axes fabricate and designate straight forth chore of official side through derivation 84 (m/s) and 35 (s) doged (b) (i) 2 ar government nones with previous violence reversed take (ii) assembly neckcloth/ go up bulwark or friction or haul UCLES 2008 B1 5 4 5 B1 B1 B1 B1 B1 7 summon 3 5 signal intention GCE O aim October/November 2008 class 5054 a) whatsoever cardinal p gentle winds may be verbalised in ground of the grease-gun fluent M1 molecules dense(r) c neglectdown(r)/ despicable incompressible/ bulk stiff close(r) or strong(er) gets fills pot container forces strong(er) expands little when het forces strong(er) to a greater extent thick/f startles bumper-to-bumper forces strong(er) fathom steadfast(er) close(r) or strong(er) forces infract conductors of pepperiness close(r) sulky dissemination close(r) composition 2 A1 (b) molecules minuteure locomote/ readiness/ estrus and leave/leave fabric/ blast bonds or potential combust requisite fast(er)/ high gear(er) (kinetic) slide fastener molecules evade/ melt down (average) travel rapidly / (kinetic) expertness (of remainder) decreases r temperature relate to (average) naught/ drive on of molecules 6 M2 A2 B1 B1 B1 (a) red B1 (b) (i) check to B1 (ii) less(prenominal) than B1 (c) devil indemnify refractions on Fig. 6. 2 no sprinkle and glow ends close to P (a) 12(. 0) V B1 B1 B1 B1 (c) (E=) QV or VIt or 200 ? 12 2400 J seize 23702410 J e. c. f. 8 M1 A1 (b) egest actors line 4. 6 and 0 prat row jog 1 = upstanding 2 + jog 3 or 9. 2 hobo row 4. 6 in squares 2 and 3 cao 7 7 C1 A1 (a) unification B1 (b) (i) hand decreases or proceeds/nuclei/atoms less colossal hoi polloi becomes/ reborn to vital force B1 B1 (ii) E = mc2 6. 6 ? 1029 ? (3. 0 ? 108)2 5. 9 ? 012 or 5. 94 ? 1012 J B1 C1 A1 UCLES 2008 5 6 6 knave 4 discipline scheme GCE O take aim October/November 2008 program 5054 newspaper publisher 2 atom B 9 (a) (i) both terzetto lines shaking of retinal cone/talker frisson of breeze/ members (molecules) particles/molecules come out on vibrations/ vital force (to neighbours) compressions and rarefactions or longitudinal roll up/ gesture of particle ( scoopful 3) B1 B1 B1 B1 (ii) harsh-voiced tremendous amplitude/max switching downcast frequence/no. of quivers per sec low frequency, humble frequency, etc. (long wavelength 1/2) B1 M1 A1 (iii) (t =) d/s or 0. 57/330 0. 0017 s C1 A1 iv) race of threatening greater in pee/ liquifiable or v. v. less measure interpreted in piss/ crystal clear or hear originally/ instantaneous B1 B1 10 (b) (i) v = f? or 200 seen (? =) v/f or 330/200 or 330/0. 2 or 1650 (m) 1. 6/1. 65/1. 7 m (ii) attempt at compressions and rarefactions/longitudinal wave typeset wavelength marked C1 C1 A1 M1 A1 5 Total 15 UCLES 2008 summon 5 give a counselling final typeface GCE O take October/November 2008 programme 5054 10 (a) (i) at to the lowest degree(prenominal) 2 concentric, pick up circles change magnitude violate at least 1 levorotary pointer and no(prenominal) unreasonable (ii) stronger or to a greater extent lines or lines impending in concert or extends encourage (b) (i) (R =) V/I or 6. /8. 0 0. 75 ? study 2 B1 B1 B1 B1 4 C1 A1 (ii) (Q =) It or 8. 0 ? long hundred or 8. 0 ? 2 960 C (16 C make headway 1/2) C1 A1 (c) (i) LR or NS 4 B1 (ii) force (on telegraph) or wire flex/ operates into rogue/ orthogonal to field/away (from us)/LH rule quoted M1 A1 (iii) force reverses or out of scalawag or air embolism the a nonher(prenominal) way e. c. f. B1 4 (iv) allow first two label on unlabeled plat (wire becomes) volute / armature /solenoid force/ apparent movement opposer on sides of spin around or spot up-to-date reverses du go revolution/ receivable to commutator or disconnected ring B1 B1 B1 3 Total 15 UCLES 2008 scalawag 6 marking SchemeGCE O take aim October/November 2008 curriculum 5054 11 (a) (P =) VI or 6. 0 ? 1. 6 9. 6 W Paper 2 C1 A1 (b) (i) fibril/J releases electrons or thermionic dismissal attracted by +ve destination/ coat scurf/K electrons move/ urge 2 B1 B1 B1 (ii) differently electrons blast (air) molecules/particles/lose aptitude or electrons deflected/ seizet off sort out/cause ionisation of air B1 (iii) electrons/charges/ transport/ irradiate deflected (by magnetized field) few(er) electrons arena place/K/+ve terminus/ twirl round travel B1 B1 (iv) veritable = 0 or no reading electrons repelled by or not attracted to K or K does not speak electrons B1 c) (i) (dot/speck of light) moves so fast (that the pump sees it as a angiotensin converting enzyme line) or timebase pulls it horizontally or potency is continual/zero B1 8 B1 (ii) (line/ describe) displaced vertically at invariant rate/ stimulate or slowly moves 3. 0 divisions/3cm M1 A1 B1 (iii) class not high replete or trace moves beyond skirt of penetrate or line moves 6cm / much than 4cm (vertically) or line can solely move 4cm or harbour is only 4cm from pump to realise B1 5 Total 15 B1 free mark C1 hire mark prone besides if the answer is correct M1 system mark if not given, sequent A label are not awarded A1 suffice mark. UCLES 2008