Toy Yo-Yo

Concept Overview:

Conservation of Energy

Lecturer Procedure

Step(s) to Follow

1. Place loop of string on finger.
2. Allow yo-yo to unroll
3. Note return.

Expected Result

Yo-yo will return to about 1/3 of it's original height due to friction, windage, etc.

Variation: Feel free to show off your yo-yo skills!