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Quantity: 10-19
Price Each:$9.45 |
Quantity: 20-99999
Price Each: $8.95 |
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Developed
by Baltimore teacher Fred Nastvogel, this motor kit facilitates a process
of discovery that is seated in a simple distinction. Instead of asking “How do assemble this kit,” the student reasons why
a motor would work at all. The answers to the why questions reside in principles
of electricity,
magnetism, and structure.
The Motor
Model is genuine in that it produces electrical current when operated mechanically.
Data collection becomes purposeful and exciting. Students can
document RPM, thrust, electrical generation and then go about design change
for optimization.
Each part has a purpose.
The making of each opens the
door of consideration of a larger field. For instance, the consideration
and choice of “bushings” leads
into the consideration of bearings, and tolerance. The making of the framework
relates directly to issues of structure. The motor’s need to respond
to the rotational motion of the armature can be compared and contrasted
with the
dynamic demands placed upon bridges and buidings. The motor, running on
batteries, can develop enough speed and torque to drive applications.
Or it can launch student made rotors.
It can be geared to rotate
a disc,
which in turn can sound a series of chimes, or act as a timing plate
for
a set of electrical
circuits.
As students become comfortable
with the basic motor design platform, they can expand interest to larger,
more complex interpretations. One
assembly
featuring
many electromagnets and a disc can be used to make a demonstration
of a particle accelerator.
Bulk pack available below. |
