Conceptual Physics Alive: Momentum
Conceptual Physics Alive: Momentum 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, Newton's 2nd law is rearranged to the form: Impulse = Change in Momentum. A variety of everyday examples, such as bouncing are used to support this impulse-momentum concept. Conservation of momentum is demonstrated with colliding carts on an air track. Momentum Includes: Hewitt begins with a comparison of mass and moving mass- momentum. Impulse and momentum are defined. Delta notation introduced. Examples of impulse-momentum: Golf ball, Slingshot, Cannonballs shot from short and long cannons, Car with failed brakes, Jumping into a net, Riding with the punch when boxing, and Catching a baseball Distinction between impact and impulse. Bouncing and its effect on impulse. Karate and Pelton wheel Demonstration of elastic collisions on an air track. Demonstration of inelastic collis