Cambridge IGCSE Physics
1.7.1Energy
Energy in Cambridge IGCSE Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic24 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 1.7.1.1Name the energy stores: kinetic, gravitational potential, chemical, elastic (strain), nuclear, electrostatic and internal (thermal).
- 1.7.1.2Describe energy transfers between stores by forces (mechanical work), electric currents (electrical work), heating, and electromagnetic, sound and other waves.
- 1.7.1.3Apply the principle of conservation of energy to simple examples, including simple flow diagrams.
- 1.7.1.4Supplement: use Ek = ½mv² for kinetic energy.
- 1.7.1.5Supplement: use ΔEp = mgΔh for the change in gravitational potential energy.
- 1.7.1.6Supplement: apply conservation of energy to multi-stage examples, including Sankey diagrams.
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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Sample question
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Turn Energy into a strength.
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