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Work, Energy and Power
Physics · Chapter 8 · Units 4-6: Work, Energy and Power; Motion of System of Particles and Rigid Body; Gravitation
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- Work done by a constant force W = F.S = FS cos(theta); work by a variable force as the area under an F-S graph
- Kinetic energy and the work-energy theorem
- Potential energy; work done in stretching a spring and spring potential energy U = (1/2)kx^2; conservative and non-conservative forces
- Conservation of mechanical energy; energy of an oscillating spring (U + K = E); energy graphs and transformations; E = mc^2 (statement)
- Power P = W/t and P = F.v