Conceptual Physics Alive: Gravity 1

Conceptual Physics Alive: Gravity 1 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, the inverse-square law is explained and then related to the law of universal gravitation. Weight and weightlessness, the discoveries of the planets Neptune and Pluto, and the universality of gravitation are also discussed. Gravity 1 Includes: Hewitt begins with patterns that underlie music and the stars. Gravitational equation explained with examples and questions. Kepler's laws. Demonstration of ellipse construction with string and tacks. Inverse-square law analogy with light from a candle. Questions to illustrate inverse-square law. Weight. Apparent weightlessness. Hewitt steps off the table and drops the ball (in slow motion} to demonstrate the effects of weightlessness. Apparent weightlessness of astronauts in a space shuttle. Examples of weight at various planetary locat