Permanent & Induced Magnetism, Magnetic Forces & Fields (AQA GCSE Physics Combined Science): Flashcards
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How many poles does every magnet have?
How many poles does every magnet have?
Two - North and South
What happens when like poles (N-N or S-S) meet
What happens when like poles (N-N or S-S) meet
They repel (push away from each other)
What happens when opposite poles (N-S) meet
What happens when opposite poles (N-S) meet
They attract (pull toward each other)
Magnetic field definition
Magnetic field definition
Area around magnet where magnetic forces can be felt
Where is a magnetic field strongest
Where is a magnetic field strongest
At the poles
Magnetic field strength as you move away from magnet
Magnetic field strength as you move away from magnet
It weakens
Navigation device that uses magnets
Navigation device that uses magnets
Compass
What compasses use to point north
What compasses use to point north
Earth's magnetic field
Device using magnetic forces to operate
Device using magnetic forces to operate
Electric motor
What electric motors rely on
What electric motors rely on
Magnetic forces