What exactly is mechanical energy?

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Discussion Overview

The discussion centers on the concept of mechanical energy, specifically its definition and relationship to kinetic and potential energy. Participants explore whether kinetic and potential energy are forms of mechanical energy or if they convert into a distinct type of mechanical energy.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants define mechanical energy as the sum of kinetic and potential energies, suggesting that understanding these two forms leads to an understanding of mechanical energy.
  • Others argue that mechanical energy is not a different form of energy into which kinetic and potential energies are converted, but rather that they are forms of mechanical energy themselves.
  • One participant notes that mechanical energy involves force, mass, and distance, contrasting it with other forms of energy like electrical or chemical energy.
  • Electrostatic potential energy is mentioned as part of mechanical energy, with some participants indicating there is overlap between these concepts.
  • A participant describes energy as the capability to do work, categorizing kinetic energy as energy due to motion and suggesting that other forms of energy are stored and fall under potential energy.

Areas of Agreement / Disagreement

Participants express differing views on the nature of mechanical energy, with no consensus reached on whether kinetic and potential energies are forms of mechanical energy or if they convert into a separate entity.

Contextual Notes

Some definitions and assumptions about energy types and their relationships remain unresolved, and the discussion highlights the complexity of categorizing different forms of energy.

tor2006
Regards my question is the following.

I know that mechanical energy is considered as a sum of potential and kinetic energy. But I still do not understand exactly what is the mechanical energy.Whether kinetic energy and potential energy are forms of mechanical energy or that the kinetic and potential energy is converted into a mechanical energy of the object.
 
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It is a matter of definition. You define mechanical energy as the sum of kinetic and potential energies. So once you understand those two, you understand what is mechanical energy. Mechanical energy is not a different form of energy into which the kinetic and potential energies are converted.
 
tor2006 said:
Regards my question is the following.

I know that mechanical energy is considered as a sum of potential and kinetic energy. But I still do not understand exactly what is the mechanical energy.Whether kinetic energy and potential energy are forms of mechanical energy or that the kinetic and potential energy is converted into a mechanical energy of the object.
They are forms of mechanical energy, involving force and mass and distance. This is as opposed to electrical energy which is based on charge and voltage...or nuclear energy or chemical energy...
 
Electrostatic potential energy is still part of the mechanical energy.
 
Chandra Prayaga said:
Electrostatic potential energy is still part of the mechanical energy.
There is overlap/meeting.
 
Energy is the capability to do work. Thus electrochemical energy is a wet cell battery is able to turn the starter motor on your car when coupled to the necessary conversion machinery. Kinetic energy is energy due to motion, while all other forms (electrostatic, magnetostatic, chemical, etc) are stored forms of energy and fall in the category of potential energy.
 
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