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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaPhysics concept

This ratio compares useful energy output with total energy input.

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Your new ahaEfficiency

Efficiency compares useful output with total input. Source: Efficiency ↗

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More from Physics Essentials

A few more worth knowing.

  1. 17Stretching an ideal spring stores this type of energy.RECALL
    Elastic potential energy

    It depends on stiffness and extension

    Open this card ↗
  2. 18This broad energy category depends on position or configuration rather than motion.RECALL
    Potential energy

    Gravitational potential is one example

    Open this card ↗
  3. 19This inward net force keeps an object following a circular path.RECALL
    Centripetal force

    It points toward the centre

    Open this card ↗