Definition

1. Noun:
   • The fundamental principle of physics that the total energy of an isolated system is constant despite internal changes: This law states that energy cannot be created or destroyed; it can only be transformed from one form to another or transferred between objects within a system. The total amount of energy in a closed system remains the same over time.

Usage Examples

• Noun:
  • The operation of the engine can be explained by the law of conservation of energy.
  • In solving this physics problem, you must apply the law of conservation of energy.
  • The law of conservation of energy is a cornerstone of classical mechanics.

Advanced Usage

• "to obey/uphold the law of conservation of energy": Describes a process or system that does not violate this fundamental principle.
  • Any perpetual motion machine proposal must first be checked to see if it obeys the law of conservation of energy.
• "a consequence/direct result of the law of conservation of energy": Used to explain a phenomenon derived from this principle.
  • The eventual halt of the pendulum is a direct result of the law of conservation of energy and energy dissipation as heat.

Variants and Related Words

• Conservation of energy (noun phrase): A more common, shortened form with the same meaning.
  • The principle of conservation of energy is universally applicable in physics.
• First law of thermodynamics (noun phrase): In thermodynamics, this is a more general statement that encompasses the conservation of energy, including heat and work.

Synonyms

• Principle of energy conservation: An alternative phrasing for the same fundamental concept.

Related Phrases

• Energy cannot be created or destroyed: This is the common, succinct statement of the law.
  • Remember the fundamental rule: energy cannot be created or destroyed, only changed in form.

Noun

1. the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes