Magnetic Fields (OCR GCSE Physics A, Combined (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?
An area around a magnet where forces influence other magnets or magnetic materials
Direction of magnetic field lines
Direction of magnetic field lines
From north pole to south pole
Where are magnetic fields strongest?
Where are magnetic fields strongest?
Near the north and south poles
Spacing of field lines indicates
Spacing of field lines indicates
Strength of the magnetic field
What does it mean when field lines are closer together?
What does it mean when field lines are closer together?
Stronger magnetic field
What does it mean when field lines are further apart?
What does it mean when field lines are further apart?
Weaker magnetic field
Two methods to show magnetic fields
Two methods to show magnetic fields
Plotting compasses and iron filings
How plotting compasses work
How plotting compasses work
North pole of compass points to south pole of magnet
How iron filings show field lines
How iron filings show field lines
They sort themselves along the magnetic field lines
What happens when opposite poles are placed together?
What happens when opposite poles are placed together?
They attract
What happens when like poles are placed together?
What happens when like poles are placed together?
They repel
Purpose of arrows on field lines
Purpose of arrows on field lines
Show the direction of the field lines