IP Physics Notes (Upper Secondary, Year 3-4): 6) Work, Energy & Power

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30 Sep 2025, 00:00 Z

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Chee Wei Jie·Academic Advisor (Physics)

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Q: What does IP Physics Notes (Upper Secondary, Year 3-4): 6) Work, Energy & Power cover?
A: Link work to energy transfers, apply conservation for height-speed swaps, and compute power and efficiency in IP Year 3-4 contexts.

Quick recap -- Energy tracks the ability to do work. When forces move objects they transfer energy, and the total energy in a closed system stays constant even as it changes form.

Keep your practice loop tight via our IP Physics tuition hub-it links each topic here to quizzes, diagnostics, and WA-style problem sets.

These notes align with SEAB GCE O-Level Physics (6091) content used in IP programmes (exams from 2026).

Status: SEAB O-Level Physics 6091 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for these notes.

Energy Forms & Key Equations

• Energy is the capacity to do work. SI unit: $\pu{J}$; energy is scalar.
• Core mechanical stores:
  • Kinetic: $E_k = \tfrac{1}{2} m v^2$