Conceptual Physics Alive! - Volume 6 - Scaling, Liquids 1, Liqui torrent

Scaling: Surface area and volume are distinguished with simple demonstrations. Several examples are used to illustrate the proportional changes in surface area and volume when objects are scaled up or down in size. Segment length: 39 minutes

Liquids I: The concepts of density, pressure, and the depth-dependence of liquid pressure are used to develop the concept of buoyancy. A variety of demonstrations are used to distinguish between the displacement, volume, weight, and density of immersed objects, and to illustrate Archimede's principle. Segment length: 39 minutes

Liquids II: This tape expands on the discussion of Archimede's principle in the Liquid's I tape, with an emphasis on the law of flotation. A variety of demonstrations help to illustrate these concepts. Segment length: 38 minutes

Gases: This demonstration-oriented lecture focuses on the atmosphere--its weight, pressure, and the buoyancy it exerts on objects. Barometer, Boyle's Law, and Bernoulli's principle are also discussed. Segment length: 40 minutes