Skip to content
    Physics GCSE

    Useful and wasted energy

    What Useful and wasted energy means in Physics GCSE, as defined for AQA.

    Definition of Useful and wasted energy

    Check what you remember

    Read the wording for your board, then hide it and explain Useful and wasted energy in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    The energy transferred usefully by a device is the useful output, while the remaining energy is wasted, often transferred by heating.
    AQA · Efficiency (study guide)

    Topics that use Useful and wasted energy

    Related terms

    Using Useful and wasted energy in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Physics questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Physics GCSE terms