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Kinetic, elastic, and gravitational energy explained

Principles of energy • Energy stores and changes

Key concepts

What you'll likely be quizzed about

  • Kinetic energy is the energy of a moving object.
  • It depends on the mass of the object and the square of its velocity.
  • The formula for calculating kinetic energy (KE) is KE = 1/2 mv², where m represents mass and v represents velocity.
  • This energy form increases as either the mass or the speed of the object increases.
  • In practical applications, objects in motion like cars, bicycles, and running athletes showcase kinetic energy in action, where faster movement translates to greater energy.

Flashcards

Test your knowledge with interactive flashcards

What does mass refer to in energy calculations?

Click to reveal answer

Mass refers to the quantity of matter in an object involved in energy calculations.

Key notes

Important points to keep in mind

Kinetic energy is influenced by speed and mass.

Elastic energy is associated with deformation of materials.

Gravitational potential energy depends on height above ground.

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