Physical Science

Question 11

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The threshold frequencies of caesium and potassium metals are given in the tablebelow. 11.1 Define the term work function in words. (2) 11.2 Which ONE of the two metals in the table has the higher work function?Give a reason for the answer by referring to the information in the table. (2) The simplified diagrams below … Read more

Information Sheet

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DATA FOR PHYSICAL SCIENCES GRADE 12PAPER 2 (CHEMISTRY)GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 12VRAESTEL 2 (CHEMIE) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISIESE KONSTANTES TABLE 2: FORMULAE/TABEL 2: FORMULES TABLE 3: THE PERIODIC TABLE OF ELEMENTSTABEL 3: DIE PERIODIEKE TABEL VAN ELEMENTE TABLE 4A: STANDARD REDUCTION POTENTIALSTABEL 4A: STANDAARD-REDUKSIEPOTENSIALE TABLE 4B: STANDARD REDUCTION POTENTIALSTABEL 4B: STANDAARD-REDUKSIEPOTENSIALE