Technical Sciences Grade 12 Eastern Cape Mock 2018 Errata

Downloaded from hlayiso.com Examinations and Assessment Directorate Steve Vukile Tshwete Complex, Zwelistsha, 5608 REPUBLIC OF SOUTH AFRICA, Website: www.ecdoe.gov.za E-mail:Nomvuyo.Mbeleki@ecdoe.gov.za Ref. No. 13/P Tel.: (040) 608 7028/082 391 1342 Enquiries: Ms N. Mbeleki Fax: TO: DISTRICTS HEADS OF EXAMINATIONS PRINCIPALS OF SCHOOLS IN THE FET BAND FROM: CES: INSTRUMENT DEVELOPMENT AND MODERATION SECTION MS N. MBELEKI SUBJECT: ERRATA – TECHNICAL SCIENCES (SEPTEMBER 2018) DATE: 2018 The TECHNICAL SCIENCES Grade 12 September was written on, 07 September 2018. We were made aware of certain errors, amendments and omissions that were discovered during the marking process. In order to address this and to ensure that learners are not disadvantaged, the following standardised approach to marking must be adopted across the Province. The following guidelines with regard to marking was prepared in conjunction with the examiner and moderator.

Downloaded from hlayiso.com ERRATA – TECHNICAL SCIENCES QUESTION 2 (USE THE FOLLOWING OPTIONS IN QUESTIONS 2.2, 2.3, 2.4 & 2.5. IF A LEARNER USES FRICTIONLESS SURFACE) 2.2. Tension (T)  Applied force (F)  (2) 2.3 OPTION 1 OPTION 2 N N FV F  T T FH Fg  Fg  FV & FH -  Correct direction of FV  (5) 2.4 On block A Fnet = ma  Fcosθ – T = ma (500)(cos300) – T  = (30)(a)  433,01 – T = 30a …………..(1) On block B Fnet = ma T = 20a  …………….(2) Subs (2) in (1) 433,01 – 20a = 30a  a = 8,66 m.s-2  (6) 2.5 OPTION 1 OPTION 2 T = 20a  433,01 – T = 30a  T = (20)(8,66)  433,01 – T = 30(8,66)  T = 173,2 N  T = 433,01 – 259,8 T = 173,21 N  (3) 8 Although the constant was not given, learners should know their constants. For incorrect constant, learners will lose marks. 17 SEPTEMBER 2018 MS N. MBELEKI DATE

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