ZIMSEC O-Level Combined Science
7.3.4Energy
Energy in ZIMSEC O-Level Combined Science: what the syllabus expects you to know, the learning objectives and how to practise.
Topic144 practice questions12 lessons
Overview
Forms 1 to 4.
In this topic
Lessons
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Energy stores, transfers and conservation
25 min
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Kinetic and gravitational potential energy
20 min
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Work done
20 min
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Reflection of light
22 min
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Sound
28 min
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The four-stroke engine
28 min
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Applying thermal energy transfer
24 min
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Conduction
18 min
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Convection
16 min
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Thermal radiation
24 min
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Solar cookers and solar water heaters
30 min
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Telecommunication: cell phones, email and transmission media
35 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Energy into a strength.
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