Permanent & Induced Magnetism, Magnetic Forces & Fields (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Practise the cards
12 cards from this deck
What is a magnetic field?
What is a magnetic field?
Area around a magnet where forces influence other magnets/magnetic materials
Direction of magnetic field lines
Direction of magnetic field lines
North pole to south pole
Where are magnetic fields strongest?
Where are magnetic fields strongest?
Near the north and south poles
What does field line spacing indicate?
What does field line spacing indicate?
Strength of the magnetic field
Closer field lines mean
Closer field lines mean
Stronger magnetic field
Further apart field lines mean
Further apart field lines mean
Weaker magnetic field
Two methods to show magnetic field lines
Two methods to show magnetic field lines
Plotting compasses and iron fillings
How plotting compass shows field lines
How plotting compass shows field lines
North pole of compass points towards magnet's south pole
How iron fillings show magnetic fields
How iron fillings show magnetic fields
Sort themselves along the magnetic field lines
Opposite poles interaction
Opposite poles interaction
Attract each other
Like poles interaction
Like poles interaction
Repel each other
Why do like poles repel?
Why do like poles repel?
Field lines travel N to S, so they can't connect between like poles