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1.3 Materials that electrical current cannot flow through are called (1)

  QUESTION 3   3. In your own words, describe the energy conversion (transformation) that takes place inside a digital battery-operated alarm clock (like the one in the picture below). Remember to include all input and output energies in your answer.    To view the picture, click on the blue button. The picture will open in a new tab next to your test. (4)

The article authored by Caspersen et al. (1985) defines physical activity as any bodily movement produced by skeletal muscles that result in energy expenditure.

  VRAAG 1: VEELVOUDIGE KEUSE     Lees die volgende stellings en kies dan die korrekte antwoord vanuit die beskikbare opsies onder die stelling. (Vraag 1.1 – 1.3) [3]

Good data has to be both accurate and precise; neither is sufficient alone.

Bibliografie: V3 prent: www.canva.com (fully licenced)

  QUESTION 4   4. Switches are used to control the flow of electricity within a circuit. In your own words, explain how a switch works.  (2)

Good data has to be both accurate and precise; neither is sufficient alone.

  VRAAG 1: VEELVOUDIGE KEUSE     Lees die volgende stellings en kies dan die korrekte antwoord vanuit die beskikbare opsies onder die stelling. (Vraag 1.1 – 1.3) [3]

  VRAAG 8   8. ‘n Land se infrastruktuur verwys na al die toerusting en fasiliteite wat nodig is om ‘n diens te lewer of wat ‘n funksie aan die publiek verskaf (soos elektrisiteits produksie en elektrisiteits voorsiening). Maak ‘n lys van 3 (drie) dinge (deel van ‘n land se infrastruktuur) wat bydra tot die koste van elektrisiteit. (3)