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Energy conservation and energy transfers explained

Principles of energy • Conservation and dissipation of energy

Key concepts

What you'll likely be quizzed about

  • The law of energy conservation asserts that the total energy in an isolated system remains constant over time.
  • Energy can change forms, such as from kinetic to potential energy, but the total amount of energy stays the same.
  • For instance, when an object falls, its potential energy is converted to kinetic energy, illustrating this principle in action.

Flashcards

Test your knowledge with interactive flashcards

What is potential energy?

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Potential energy is the stored energy of an object due to its position or state.

Key notes

Important points to keep in mind

Energy cannot be created or destroyed.

Always consider energy transformations in systems.

Efficiency relates to how well energy use is optimized.

Friction typically reduces efficiency by waste heat.

Mechanical energy includes both kinetic and potential energy.

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