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🔬 Science - Class 9
Unit 8 · Simple Machine

The Pulley Presentation

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Science and Technology · Class 9 · Unit 8

The Pulley

A simple machine · Three types · Velocity ratio and mechanical advantage

Today's Objectives

🛞

Identify fixed, movable and combined pulleys

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Find the velocity ratio (VR)

⚖️

Find the mechanical advantage (MA)

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Presenter notes: Every student has seen a pulley at a well or on a flag pole. Open by saying that today they will learn the kinds of pulleys and how to calculate with them.