ZIMSEC O-Level Combined Science
7.3.6.4Electrical power, energy and the home
Electrical power, energy and the home in ZIMSEC O-Level Combined Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic14 practice questions1 lesson
Overview
Forms 2 to 4.
Learning objectives
What the syllabus expects you to be able to do.
- 7.3.6.4.1Define and calculate electrical power and energy (P = VI, E = VIt), including in kilowatt-hours.
- 7.3.6.4.2State uses of electricity in the home, calculate the cost of electricity from meter readings and describe ways of saving electricity.
- 7.3.6.4.3Explain the use of solar photovoltaic systems.
Lessons
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Electrical power, energy and cost
30 min
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Sample question
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Turn Electrical power, energy and the home into a strength.
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