3. Work, Energy, and Power

15–25% of the AP exam. Key topics: Translational kinetic energy, Work done by variable forces: W = ∫F·dx, Work-energy theorem, Conservative vs. non-conservative forces, Potential energy functions derived from force: U = -∫F dx, Conservation of mechanical energy, Energy dissipation by non-conservative forces, Power: P = dW/dt = F·v.

15–25% exam weight standard track

Unit 3: Work, Energy, and Power

Study guide content for this unit is being prepared. Check back soon for complete lesson notes, formula sheets, and worked examples.

Topics in this unit

Translational kinetic energy
Work done by variable forces: W = ∫F·dx
Work-energy theorem
Conservative vs. non-conservative forces
Potential energy functions derived from force: U = -∫F dx
Conservation of mechanical energy
Energy dissipation by non-conservative forces
Power: P = dW/dt = F·v