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

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.

Energy Forms & Key Equations

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