Data Sheet

-23-
WARNING:
Moving parts. Do
not touch the fan
or motor during
operation. Do not
lean over the motor.
!
1. Closed Circuit
E-Blox
®
Circuit Blox™ uses electronic blocks that plug into a clear plastic
grid to build different circuits. These blocks have different colors and
numbers on them so that you can easily identify them.
Build the circuit shown on the left by placing all the parts that plug into the
rst layer base. Then, assemble the parts that connect to the secondary
layer. Install three (3) “AA” batteries (not included) into the battery holder
(91). Secure the battery cover before using it.
Pressing the switch (62) creates a closed circuit; the lamp (76) will turn
on. Press it again to open the circuit and the lamp (76) will turn off.
2. Magnetic Switch
Replace the switch (62) with the reed switch (83). Put the magnet (7)
near the reed switch (83) and the lamp (76) will turn on. Move the magnet
(7) away and the lamp (76) will turn off. This is a “no touch” switch!
3. The ‘Momentary’ Switch
Replace the reed switch (83) with the press switch (61). Press and hold
the press switch (61) and the lamp (76) will turn on. Release the press
switch (61) and the lamp (76) will turn off. This type of switch is called a
‘momentary’ switch since it is only on when pressed.
4. Electrical to Mechanical Energy
Assemble the fan (60) by following the assembly diagram shown on the
left. Build the circuit to the left. Press the switch (62) and the fan will spin
as long as the switch is pressed. Electrical energy from the batteries has
been changed to mechanical energy by the motor (95).
5. Proximity Sensor
Replace the switch (62) with the reed switch (83), then move the magnet
(7) near the reed switch (83) and the motor (95) will turn on. Move the
magnet (7) away and the motor (95) will turn off. Proximity sensing like
this is often used to control things like blow drying your car in a car wash.
6. Newton’s First Law of Motion
Replace the reed switch (83) with the press switch (61), press and hold the
press switch (61) and the fan (60) will start spinning. Release the press switch
(61), the fan (60) will slow down and nally stop due to friction in the motor.
This demonstrates Newton’s First Law of Motion: An object either remains at
rest or continues to move at a constant velocity, unless acted upon by a force.
Motor shaft cap
Fan
Motor top
Motor