Work, Energy and Power
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Everything a batch would cover. Scan the 11 parts, then read into the one that’s yours.
Work Done by a Force
- definition and scalar product formulation
Nature of Work
- positive work
- negative work
- zero work
- frame-dependence of work
Work by Variable Force
- graphical interpretation as area under the F-x curve
Work by Specific Forces
- work done by gravity
- work by an interacting pair of forces
- work by static friction
- work by kinetic friction
- work by spring force
- work by a pseudo (inertial) force
Kinetic Energy
- definition and formula
Work–Energy Theorem
- statement
- derivation and applications
Conservative vs Non-Conservative Forces
- definitions and identification
Potential Energy
- gravitational PE
- elastic PE stored in a spring
- change in PE
- three-dimensional formula for PE
- potential energy curve
- energy diagram for a two-atom attractive system
- nature of force and stability of equilibrium
Mechanical Energy
- conservation of mechanical energy
Power
- mechanical power
- instantaneous vs average
Applications of Power
- power of a water-drawing pump
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- 27 subtopics
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A teacher who doesn’t fully own a chapter teaches it half-convincingly, and you absorb the hesitation.
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