Conceptual Physics Alive: Center of Gravity

Conceptual Physics Alive: Center of Gravity includes a digital video and questions set with answers. Observe Paul Hewitt teach in a classroom with real students, using engaging demonstrations and artwork. In this video, Paul Hewitt teaches Center of Gravity: The concepts of torque, center of gravity, and center of mass are applied to balancing. Demonstrations include finding the center of gravity of irregularly-shaped objects, a weighted disk that rolls uphill, and a seesaw. Center of Gravity Includes: Begins by Hewitt throwing a ball and wooden object through the air to introduce center of gravity (CG) and center of mass. Center of gravity of L-shaped wood and irregular piece of wood found by suspension technique. Hewitt demonstrates the toppling of L-shaped wood and introduces the concept of torque. The CG of people is discussed. Hewitt demonstrates the impossibility of toe touching with heels to the wall, with a follow-up chalkboard explanation. Pregnant lady and CG skit. CG examp