Magnetic fields
2 marks · NormalState what a magnetic field is and explain how we can make it visible in the laboratory.
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A magnetic field is the region around a magnet where magnetic forces can be felt; it can be made visible using iron filings or plotting compasses.
Also accept: A magnetic field is the region of space where a magnetic force can be detected; it is made visible using iron filings or plotting compasses.
Common mistakes: Describing the field as something that can be seen without explanation; Omitting reference to methods of making it visible
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Marking points
B1 · 1 mark · Defines a magnetic field as a region in which magnetic forces can be detected.
B2 · 1 mark · States one way of making the magnetic field visible (iron filings or plotting compasses).
Worked solution
A magnetic field is a region around a magnet where the force of magnetism can be felt.
We can make it visible by using iron filings or plotting compasses placed near the magnet.