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Magnetism - Coggle Diagram
Magnetism
Poles
North
South
No East or West
Magnets on have North and South
Magnetic North
Ordnance Survey Maps
Set Compass to follow True North Or Magnetic North
A few degrees off True North
Always Changing
Because of earth's rotation
True North
Set compass when using a normal map
Revision
Test Yourslef
Read Notes
Write Notes
Implant in brain
Strengthen Pathways
Making Magnets
Rub Magnet on Iron
Allign the magnetic Domains
Pull magnet far away and bring back round
Bang to unalign the domains
Electromagnets
Uses electricity
Electric Doorbell
Contact completes circut
electromagnet turned on
Contact broken with armature and contact
electromagnet attracts armature
breaks curcuit
electromagnet off
contact reinstated
Repeats
Parts
Coil of Wire
Creates magnetic field
aligns magnetic domains
Iron bar (most magnetic metal)
Steel is alloy
Metals
Cobalt
Iron
Nickel
Show field
Iron filings
On paper
Forms magnetic field of magnet
Piece of paper
Inbetween magnet and filings
Magnet
Under paper
Forces
Repel
Same Poles
North and North
South and South
Attract
Opposite Poles
South and North
North And South
Magnetic Field
Magnetic Field Lines
South to North
Magnetic North is actually south
We call it Magnetic North to avoid confusion
Earth's Magnetic Field
Causes Northern Lights
Large iron ball in the centre of the Earth.
Orienteering
Reset Compass
Use Ordnance Survey Maps