What is the formal definition of energy in physics?
8178
What Is Energy? Where did it come from?
82927
What is "pure energy" in matter-antimatter annihilation made of?
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
115200
Why does energy have to be emitted in quanta?
24189
What exactly is a bound state and why does it have negative energy?
117292
Is energy the ability to do work?
68027
Conservation of Energy vs Expansion of Space
120098
Work and Kinetic energy rely on each other which came first?
148088
What is the energy of a superposition of energy eigenstates?
59594
Binding energy and mass
64508
Where exactly does energy quantisation come in for light?
1031
When does Hamiltonian equals to energy of the system?
107902
Is Kinetic Energy stored as (rest) mass?
21256
If energy can neither be created nor be destroyed,what is the ultimate source of energy?
79614
Many-worlds: Where does the energy come from?
16282
Coincidence, purposeful definition, or something else in formulas for energy
31848
Where does gravity get its energy from?