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Knex Lever And Pulleys

  code:KL227
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Explore the forces at work in a seesaw or a balance, and feel how pulleys make lifting loads easier with this fully supported set. This set builds 8 different models, one at a time, and includes a Teacher's guide on CD. This set covers the following concepts: Identifying all three classes of lever and testing them to determine how they operate. Identifying key parts of levers: effort arm, resistance arm, and fulcrum. Comparing and contrasting how different levers function. Discussing how levers change the direction and/or amount of force applied to work. Identifying appropriate places where levers are used. Identifying different types of pulley systems and testing them to determine how they operate. Identifying key parts of a pulley system. Comparing and contrasting how different pulley systems function. Identifying appropriate places where different pulleys are used. Discussing how pulleys change the direction and/or amount of force applied.

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