Energy

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.