Conceptual Physics Alive: Gravity 2

Conceptual Physics Alive: Gravity 2 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 discussion of gravitation continues with the emphasis on the ocean, earth, and atmospheric tides. Other topics include tunnels through the earth, black holes, the big bang, and speculations of an oscillating universe. Gravity 2 Includes: Hewitt begins with a discussion of ocean tides. Hewitt by chalkboard explanation gives an analogy of pulling on a ball of jello in such a way as to deform the jello (like the moon does to the earth's oceans). The earth and moon accelerate toward each other as they orbit about a common center of mass. The earth rotates daily beneath bulges produced by the moon's pull. Hewitt demonstrates the twice-daily tides with a rotating globe. The sun's influence in producing tides. Explanation of tide variation due to the various positions of the moo