why isn't conservation of energy just a definition?
119004
Proof of conservation of energy?
94615
Is the change in kinetic energy of a particle frame independent?
84458
What's the real fundamental definition of energy?
45613
Conservation of energy when slowing an object down
58724
Capillary action and conservation of energy
30498
Energy conservation and interference
1031
When does Hamiltonian equals to energy of the system?
8758
Why isn't the product rule used in the definition of mechanical work?
15731
When is stress-energy tensor defined as variation of action with respect to metric conserved?
110104
If conservation of energy was wrong, how would we know about it?
17619
How does rest mass become energy?
45283
Why don't virtual particles violate conservation of mass/energy?
80190
Why does it make any physical sense for a body to have negative potential energy?
29928
Is kinetic energy a relative quantity? Will it make inconsistent equations when applying it to the conservation of energy equations?
144698
Why do many people say that virtual particles do not conserve energy?
112308
Why is the gravitational potential energy defined as negative?
99522
Why doesn't the work done by atmosphere contribute to increase in internal energy of gas?