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Transcript
SIDE A
A DYNAMO is a machine which converts movement into electrical energy.
A GENERATOR is a giant dynamo.
A dynamo needs a source of energy to spin or turn it.
Handle turns the
shaft
coil of wire which
turns when the
shaft turns
The secret inside
magnet
Inside every dynamo is a coil of wire and
strong magnets.
Michael Faraday, in 1831, discovered
that if you spin a coil of copper wire
between magnets you could get a flow
of electricity. The more loops of wire you
have, the more electricity is generated.
By turning the handle on the dynamo,
you turn the coil between the two
magnets. This motion causes an electric
current to flow through the coil of wire.
electrical
contacts
Electricity flows along the wire
and lights the bulb
Renewable
energy machines
Renewable energy technology uses
TURBINES to turn GEARS which then
turn a SHAFT inside a GENERATOR.
The turning shaft spins a huge coil of
wire past giant magnets and generates
ELECTRICITY.
Gears
Turbines
Shaft
Electricity
See over for information on electric motors
Generator
(dynamo)
SIDE B
An electric motor is a dynamo in reverse.
First Electric Motor
The first, very simple, electric motor was made by
Michael Faraday in 1821. He showed that a single wire,
suspended between magnets would revolve when a
current was passed through it.
Electric Motor
Coil of wire which
feels a force
and turns when
electricity flows
through it
motor spinning
magnet
electrical
contacts
Electricity flows
along the wire
from the battery
battery
RENEWABLE ENERGY TOOLKIT FOR PRIMARY SCHOOLS