What is the abstract idea behind energy?
123654
How can energy be useful when it is 'abstract'?
46509
Energy level below ground state
120098
Work and Kinetic energy rely on each other which came first?
107031
Is conservation of energy only for isolated systems?
137052
What is pure energy?
155558
If energy is only defined up to a constant, can we really claim that ground state energy has an absolute value?
117292
Is energy the ability to do work?
45625
Is energy content of a system different depending on the observer?
139061
Why is 7 TeV considered as a big amount of energy?
76283
Equipartition of energy
1031
When does Hamiltonian equals to energy of the system?
83770
Kinetic energy doesn't make sense
84458
What's the real fundamental definition of energy?
30498
Energy conservation and interference
37613
How does the brain's energy consumption depend on mental activity?
152415
Why "Dark Energy" is called energy instead of force?
31848
Where does gravity get its energy from?