Balance Guy

If the center of gravity is below the point you would like to balance something
you can balance it on that point.

Make a toy person and extend the "arms" down so that it can balance.

Make the arms the same length on each side.

The center of gravity is below their finger so they balance.
http://www.marshall.edu/LEGO/VOB1213/2013-01-07VoB2/2013-01-07VoB2.html

 of Linda Hamilton hamilton@marshall.edu With support from
LEGO: Center of Gravity
“Balance Toy”

Objective: to learn about (1) center of gravity (2) toys and how they have changed over time
Essential Questions:
1. What makes something a toy?
2. How have toys changed over time?
3. What is center of gravity?
Materials: LEGO Simple Machine Sets and angled connectors in LEGO Bridge Set

Name: _______________
LEGO “Center of Gravity Balance Toy”

Discussion:
1. What makes something a toy?
2. How have toys changed over time?
3. What is center of gravity?

Center of Gravity is the point at which all of the weight of an object appears to be concentrated.

Instructions:
You are going to build a LEGO Center of Gravity Toy. Once it has been built, check each task that you are able to complete.

_____ Toy can balance on the end of my index finger.
_____ Toy can balance on the end of my nose, knees, and toes.
_____ Toy can stay balanced while I am walking.

____ How long can your toy spin on its “axis” on a platform?

Try 1: __________ seconds
Try 2: __________ seconds
Try 3: __________ seconds

by Mrs. Salter