Conceptual Physics Alive: Newton's Third Law

Item # 99-0060

Arbor Scientific

99-0060

31758626783305

\$7.95
In Stock

Master teacher Paul Hewitt teaches concepts on Newton's 3rd Law and demonstrates with numerous examples, including a tug-of-war.

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Conceptual Physics Alive: Newton's Third Law 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 Newton's 3rd Law: The notion that a force is a push or a pull is developed. The concept that forces always occur in pairs as interactions between one thing and another is supported with numerous examples, including a tug-of-war.

Newton's 3rd Law Includes:

• Hewitt begins with "I can't touch you without you touching me in return." Then Newton's 3rd law is defined.
• Force defined as an interaction.
• Demonstration of blocks pulled by an elastic band.
• Demonstration of a tug of war with visitor, Helen Yan (co-author of the Next-Time Questions that accompanies the high school edition of Hewitt's Conceptual Physics).
• Fingers stretching a rubber band produce a single interaction. Likewise with the gravitational interaction between the earth and moon.
• Action, A on B; Reaction, B on A.
• Examples of walking on the floor; swimming, tires pushing road, tug of war, pulling up on bike handlebars, weighing oneself and pulling up (or pushing down) on the sink, dropping an object.
• Different accelerations shown with exaggerated symbols.
• Examples of gun kick, firing squad, rocket fired to the moon, being stranded on ice, and punching a sheet of paper.

Next-Time Question: Horse-and-cart problem sketched on board: How can the horse exert a force to move the cart when the cart exerts as much reaction force? (SEE RESOURCES TAB FOR MORE)

Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.