Physics GCSE
field strength
What field strength means in Physics GCSE, as defined for AQA, OCR.
Definitions of field strength
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Reference: AQA
Depends on the distance from the magnet, being strongest at the poles and getting weaker as the distance from the magnet increases.
How strong the field is at that point, which together with the charge the second object carries determines the size of the force.
Much greater for massive objects, and it decreases as distance from the object increases.
Topics that use field strength
- Electric fields (AQA GCSE)
- Magnetic fields (AQA GCSE)
- Forces in action (OCR GCSE)
Related terms
- always attraction
- Area under a force–extension graph
- Clockwise and anticlockwise rotation
- Constant versus changing ratio
- direction of field lines
- direction of force
- Earth's magnetic field
- elastic deformation
Using field strength in the exam
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