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"I sent CoolStuff to a new teacher I'm
mentoring. I use CoolStuff all the time and love it. The kids love it and learn from it!"
~ Dixie D. from Texas
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Lab #36.8
Magnetism: Motor Madness
Purpose
In this activity,
students will investigate the
principles that make electric
motors possible.
Discussion
Perhaps the
most important invention of
the 19th century was the
electric motor. You use a
motor whenever you use
electric power to make
something move. A motor is
used to start the engine of
a car. Motors are used to
spin compact discs. Motors
are used to move elevators
up and down. A list of motor
applications would go on and
on. But how do motors turn
electric energy into
mechanical energy? Let’s
find out!
Required Equipment
Hand-held
generator (Genecon® or
equivalent), connecting wires,
about 50 cm of lead-free solder,
2 collar hooks (or 2 10-cm
lengths of lead-free solder),
about 30 cm of 1/4" diameter
wood dowel,
support rod with base and rod
clamp, 2 bar magnets (strong
alnico magnets are recommended)
small block of wood (about 2" x
2" x 1"), 2 rubber bands, 2
D-cell batteries
Download
Student Worksheet
Teacher Notes
Return to Lab Menu
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Solder |
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The "Small Block"
is not specific and can be
fashioned from scrap lumber.
Each lab group would need access
to one of each; see lab detail
for specific use. |
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