Unit 8 · Floatation

Hydraulic Machine Presentation

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Science and Technology, Grade 10 · Unit 8

Hydraulic Machine

Pascal's law at work · Small force in, large force out

By the end of this lesson you can

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Build and explain a two-syringe model

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Explain how a backhoe digs

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Describe the parts of a hydraulic machine

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Derive and use F₂ = F₁ × A₂/A₁

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Presenter notes: Today we see how a small push on one piston can lift a car on another. The whole idea rests on one law we already know: Pascal's law.