On energy conservation
8178
What Is Energy? Where did it come from?
3471
Why does holding something up cost energy while no work is being done?
52502
Conservation of Energy in a magnet
122902
Kinetic energy conservation in a collision
22934
Validity of work-energy theorem in presence of non-conservative forces?
6592
if a body is stopped by means other than friction, where does energy go?
61742
How is electricity wasted?
152034
Should I heat my room when I'm not here, energy-efficiently speaking?
78057
What is the physical explanation for energy transport in simple electrical circuits?
82061
How do chemical propulsion systems not break the law of conservation of energy?
157534
Potential energy sign conventions
145238
Where does the energy required to stop a moving body come from and go?
94340
Potential energy conservation in traversable wormholes
141475
optimality of the Carnot cycle
61686
Noether's first theorem and classical proof of electric charge conservation
130178
Can I save energy costs by turning off the refrigerator for 1-2 hours every day?
147954
Relation between power and energy