What Is Pulley Simple Machine - 搜索视频

What is a Pulley? - Physics for Kids | Mocomi

What is a Pulley? - Physics for Kids | Mocomi

Learn what a pulley is - a simple machine that reduces the time and energy taken to lift heavy objects through this animated learning video.

mocomi.com2013年8月15日

Simple Machine Projects

Pulley, Wheel, Lever and More Simple Machines - Science for Kids | Educational Videos by Mocomi

Pulley, Wheel, Lever and More Simple Machines - Science for Kids | Educational Videos by Mocomi

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Simple machine project with inclined planes, lever, pulley and wedge

Simple machine project with inclined planes, lever, pulley and wedge

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Science - How Simple machines work (Inclined plane, Wheel and axle and Pulley) - English

Science - How Simple machines work (Inclined plane, Wheel and axle and Pulley) - English

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Simple Machines | Overview, Types & Examples

Simple Machines | Overview, Types & Examples

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How to Calculate the Mechanical Advantage of a Pulley | Physics | Study.com

How to Calculate the Mechanical Advantage of a Pulley | Physics | Study.com

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9.3 Simple Machines - Physics | OpenStax

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Simple Machine Definition & Types

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