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Universal Specialties Classic Newton's Cradle Extra Large 7 1/4 Inch Dark Brown Wooden Base Balance Balls
Newton's Cradle, also called Balance Balls, is a great desk and classroom science toy. This educational tool demonstrates the conservation of momentum and energy. Newton's first law of inertia - an object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted on by an external force. Newton's second law - Force = mass X acceleration. Newton's third law - For every action there is an opposite and equal reaction. This desktop physics executive toy demonstrates conservation of momentum and energy. This device consists of 5 metal balls of equal mass. When 1 ball is lifted and released, the force travels through the remaining balls and causes a single ball

Price is $31.00
Price: $30.88