from 東大1S力学A Energy What is Energy?
- Energy is something abstract that cannot be seen, but it can be calculated.
- It is just something to calculate.
- It is given the name “energy” for values that become constants in calculations.
- (Refer to Energy Integration)
- Until now, I thought it was named “energy” because it was convenient to have a conservation law even though we didn’t know why.
- But since it is a constant value obtained through calculations, it is a mistake to say that we don’t know why.
- The derivation of energy using Classical Mechanics and Energy Integration is one definition.
- However, of course, if classical mechanics fails, we cannot talk about energy.
- However, the definition of energy has gradually expanded based on this definition.
- As a result, the Law of Conservation of Energy still holds today.