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2 marksElectricity, Lighting and Safety

CSEC Integrated Science · 2005 · Paper 2 · Question 3(a)

Figure 5 shows electricity meter dial readings taken on 1st December 2002 and 31st December 2002.

Read each meter display and calculate the total amount of electricity consumed during December 2002 in kWh.

This question uses a figure or table from the paper — you'll see it when you practise.

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Other parts of this question

  1. 3(b)Calculate the total cost of electricity used in December, given a fixed fuel charge of $20.00 and an energy rate of 25 cents per kWh.[2 marks]
  2. 3(c)(i)Calculate the total daily energy consumption in kWh per day for all the appliances listed in Table 1.[2 marks]
  3. 3(c)(ii)State two measures the household can implement to reduce their electricity usage.[2 marks]
  4. 3(d)(i)Define what a fuse is.[1 mark]
  5. 3(d)(ii)Explain how a fuse provides protection for an electrical appliance such as a hairdryer.[2 marks]
  6. 3(d)(iii)Explain why water must not be used to extinguish an electrical fire.[2 marks]
  7. 3(d)(iv)State two safe methods used to extinguish an electrical fire.[2 marks]

More practice: the rest of this paper · more Electricity, Lighting and Safety questions · all CSEC Integrated Science past papers