4c THOMAS (1)

2.2 Use the following information about three energy systems to answer the questions:   Incandescent light bulb: Electrical energy input: 100J Light energy output: 10J Heat energy output: 90J   Energy saving light bulb: Electrical energy input: 20J Light energy output: 10J Heat energy output: 10J   Hair dryer: Electrical energy input: 500J Kinetic energy output (fan): 110J Heat energy output: 350J Sound energy output: 40J  

1.1.3 The electricity enters the power lines of the national grid and is transmitted. (2)

Lees die volgende instruksies noukeurig voordat jy die vrae beantwoord:  1.       Die antwoorde wat jy verskaf, moet jou eie, oorspronklike werk wees. Geen kopiëring van enige bron word toegelaat nie. Geen punte sal toegeken word vir werk wat gekopieer word nie.  2.       Lees al die vrae noukeurig.  3.       Beantwoord AL die vrae in die vasvra – moenie enige vrae onbeantwoord laat nie en moenie jou antwoorde op papier skryf nie.  4.       Gebruik die puntetoekenning as ‘n gids tot hoeveel inligting in jou antwoorde benodig word.  5.       ‘n Lêeroplaai kan nodig wees. Jy sal papier, ‘n potlood, ‘n liniaal en ‘n skandeerder nodig hê, app of telefoonkamera skandeer.  6.       Slegs hand getekende diagramme, vloeikaarte of tabelle op ‘n aparte stuk papier wanneer gevra word om dit te doen.  7.       Alle tekeninge moet in potlood gedoen word en in blou of swart ink gemerk word.  8.       Die diagramme in hierdie vraestel word nie noodwendig op skaal getrek nie.  9.       Jy kan ‘n sakrekenaar gebruik indien nodig. 

  Section A:                   Discursive Essay Answer ONE question from this section. Write a Discursive Essay showing evidence of analysis, interpretation, explanation and argument on the following:   Theme: Russian Revolution  QUESTION 1 Compare Stalin’s Five-Year Plans with regards to Industry and Agriculture.  Which of the two sectors had the best outcome for the people of USSR? Focus on the economic and social outcome.                                                                                                                                                          (70)   OR Theme: Crisis of Capitalism : The great depression in the USA  QUESTION 2   To what extent was Franklin D. Roosevelt’s New Deal Policies a success in USA between 1933 – 1939? Focus on Economic and Social aspects.                                                                                                                                                          (70) OR   Theme: Apartheid in South Africa:1940’s to 1960’s  QUESTION 3  Passive resistance in South Africa during the 1940’s-1950’s did not have the effect that black people had hoped for. To what extent was violent resistance then justified? Focus on 1949 – 1959 in your answer.                                                                                                                                                           (70)                          

1.1.2. Subject matter (2)

EXAMINATION INSTRUCTIONS 1. This question paper consists of SECTION A and SECTION B 2.  One Question from Section A and one Question from Section B must be answered. 3. SECTION A: Discursive Essay  Question 1: Russian Revolution  Question 2: Crisis of Capitalism: The Great Depression in the USA  Question 3: Apartheid in South Africa:1940’s to 1960’s    SECTION B: Extended Writing  Question 4: Russian Revolution  Question 5: Crisis of Capitalism: The Great Depression in the USA  Question 6: Apartheid in South Africa:1940’s to 1960’s  4. When answering the questions, you should apply your knowledge, skills and insight. 5.  Accurate and adequate factual knowledge is essential; equally important is the ability to use relevant information critically in answering the questions.  

1.1.3. Visual Literacy (2)

How many grams of powder milk would you need to prepare 500 mL of a 4% w/v milk solution?

A serial dilution is performed using the ATP stock from the previous question, as follows below. Determine the concentration, in μg/mL, of tube 3.