Chapter 5 • Class 11 Physics
Work, Energy and Power
Work, Energy and Power — Class 11 Physics (NCERT) notes on work by constant and variable force, work-energy theorem, potential energy, conservation of energy, power and collisions.
Study by topic — one focused page each
1
Work & the Work-Energy Theorem
Work in physics is not the same as everyday effort. A man holding a heavy suitcase while standing still gets tired, but in the language of physics he …
Start this topic → 2Potential Energy & Conservation
Potential energy is stored energy a body possesses because of its position or its configuration. A stretched bow, a raised hammer, and a compressed sp…
Start this topic → 3Power & Collisions
Power measures how fast work is done. Two cranes may lift the same load to the same height — doing identical work — but the one that does it in less t…
Start this topic →Chapter-wide tests
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