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Pulley Dynamometer Fixed & Moving Pulley Physics Experiment DIY Science Educational Toys Kit

Pulley Dynamometer Fixed & Moving Pulley Physics Experiment DIY Science Educational Toys Kit

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Features:
1. Happy and easy to learn
2. Exercise your children practical ability
3. Train your children observation capability, thinking and analytical skills

Learning Points:
Fixed pulley, movable pulley concept
Why the fixed pulley can not  save effort , but movable pulley can save effort?
 
Explanation: With movable pulley can save a  half  power, fixed pulley is a lever arm, no save effort nor effortless, but it can change the direction of force.
 
Package Included:
1 x Pulley Physics Experiment Kit

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