simple electric circuit magnetism and the electromagnet mechanical systems (revision) developed by:...
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Simple Electric Circuit Magnetism and the Electromagnet
Mechanical Systems (revision)Developed by: Johnny Freese
WCED: METRO SOUTH
CAPS Technology Grade 7Term 3
TYPES OF MAGNETS
HORSE SHOE
BAR MAGNET
MANY TYPES
MAGNETISED & UNMAGNETISED
UNCOMBED HAIR
COMBED HAIR
UNMAGNETISED MAGNETISED
Some metals are attracted to magnets and some are not.
iron
aluminium
nickelsteel
wood
copper plastic
A simple electrical circuit
3 volt battery switch
Light bulbConducting wire
1,5 V 1,5 V
Simple circuit diagram
1,5 volt cell
Conducting wire
switch
Light bulb
SummaryComponent Name Component Picture Symbol
Cell
Switch
Light Bulb
Conducting wires
1,5 V
Simple electromagnet
N SIron nail
Cell
SwitchInsulated copper wire
Magnetic force!
More windings mean a stronger magnet
3 layers of windings
Explain how this electromagnet machine works. Many technologies use electromagnets.
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