IGCSEPhysicsCIERevision Notes4. Electricity & Magnetism4.2 Electrical Quantities4.2.1 Electric Fields & Charges

Electric Fields & Charges (CIE IGCSE Physics)

Revision Note

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Lindsay Gilmour

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Physics

Positive & Negative Charges

  • Objects can be given one of two types of electric charge:
    • Positive
    • Negative

  • When two charged objects are brought close together, there will be a force between those objects

opposites-attract, IGCSE & GCSE Physics revision notes

Like charges repel; opposite charges attract

  • Remember:
    • Opposite charges attract
    • Like charges repel

EXTENDED

  • Electric charge is measured in units called coulombs (C)

Exam Tip

Whilst electrostatic forces share many similarities with magnetic forces, they are different phenomena – take care not to confuse the two!

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    Lindsay Gilmour

    Author: Lindsay Gilmour

    Lindsay graduated with First Class Honours from the University of Greenwich and earned her Science Communication MSc at Imperial College London. Now with many years’ experience as a Head of Physics and Examiner for A Level and IGCSE Physics (and Biology!), her love of communicating, educating and Physics has brought her to Save My Exams where she hopes to help as many students as possible on their next steps.