Activity 16, Activity 17, Spinning rings – Elenco Snap Circuits® Home Learning User Manual
Page 26: Strobe the house lights

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Materials List
2 2-Snap Wires
1 3-Snap Wire
1 Battery Holder (B1)
1 Motor (M1) with Fan Blade
1 Press Switch (S2)
1 Printed disc cutout
1 Tape (not included)
1 Scissors (not included)
Describe what you see when the press switch is pushed. ___________________________
_________________________________________________________________________
Is this a series or parallel circuit? ______________________________________________
Build the circuit as shown.
Cut out the disc from page 44.
Using tape, attach the disc to the fan
blade with the printed side up.
Place the fan blade and disc on the
motor.
Now, turn off the lights and shine a flashlight on the spinning disc. Press the switch for a few seconds. How does the disc look
under flashlight light?
____________________________________________________________________________________
T12 fluorescent lights blink at a rate of 120 times a second. How is this different from the flashlight? ______________________
______________________________________________________________________________________________________
Use the preceding circuit with the colored disc, and place it under the fluorescent light. Push
the press switch for a few seconds, several times. What do you notice happening with the disc?
________________________________________________________________________
Cut this out from page 44
Activity 16
Spinning Rings
Activity 17
Strobe the House Lights
+
Find a fluorescent light with a T12 bulb (1.5 inch
diameter) that runs on normal house electricity.
T8 bulbs (1.0 inch diameter) or CFL bulbs will not
work.