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Item #: AP7065 

Price: FREE

Temporarily out of stock; call for availability.

In the Center of Gravity Activity Kit for physical science and physics, locate the center of gravity of an irregularly-shaped object. Demonstrate the principles of center of gravity and how it relates to balance and stability.

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Product Details

Easily show your students how to locate the center of gravity of an irregularly shaped object. Once the center of gravity is determined, insert a pencil inot the proper "center of gravity" hole and spin the object—it will rotate smoothly. Spin the object from any other hole and it will wobble. Use this clear-cut demonstration to introduce the principles of center of gravity and how it relates to balance and stability. Irregular pentagon, hanger handle, string, plumb bob, and complete instructions are provided.


Materials Included in Kit: 
Dowel rod with hook, green
Polygon 1, irregular pentagon, with holes, 11" x 12"
Sinker, #6, swivel, ½ oz
String, thin, 2 M long

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

MS-PS2.A: Forces and Motion
MS-PS2.B: Types of Interactions
HS-PS2.A: Forces and Motion
HS-PS2.B: Types of Interactions

Crosscutting Concepts

Cause and effect
Systems and system models
Stability and change
Structure and function

Performance Expectations

MS-PS2-4: Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects
HS-PS2-4: Use mathematical representations of Newton’s Law of Gravitation and Coulomb’s Law to describe and predict the gravitational and electrostatic forces between objects.