Mr Palmer's AQA GCSE Physics Notes

Energy



Work





  • W: the work done to an object in joules (J)

  • F: the force applied to the object in newtons (N)

  • d: the distance moved by the object in meters (m)



    • Note that if the object does not move, no work is done, no matter how big the force may be.

    Example: Mr Palmer finally snapped and murdered Mr Williams after catching him stealing the board pens out of Lab 1 for the last time. Mr Palmer now has to drag the body up to the school's pond to hide it in the shed. Mr Palmer exerts a force of 900N on the body for 35 meters. How much work did Mr Palmer do?













    Kinetic Energy





  • K: Kinetic energy measured in joules (J)

  • m: mass measured in kilograms (kg)

  • v: the speed of the object measured in meters per second





    • }
    Evil clown!



    Example: An evil clown throws a half kilogram pie at your face! The clown imparts 100J of kinetic energy into the pie, what is its speed?















    Gravitational Potential Energy











    		 Navigation

    Physics P1 Topics
    1. Heat
    2. Energy
    3. Electricity
    4. Power
    5. Electromagnetic Spectrum
    6. Nuclear Radiation
    7. Origins of the Universe


    Physics P2 Topics
    1. Motion
    2. Forces
    3. Energy
    4. Static Electricity
    5. Current Electricity
    6. Mains Electricity
    7. Momentum
    8. Nuclear Physics

    Other
    1. Mathematics for Physics