Page 140 - York Global Science 6 - Physical Science

1 4 Rock formations over timeom Simple Machines
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Objective

➜ ➜ Explain how simple machines give bigger force but at the expense of

smaller movement (and vice versa); product of force and displacement
unchanged.

Vocabulary

• Axle • Inclined plane • Simple machine
• Distance • Lever • Wedge

• Energy • Load • Wheel
• Force • Pulley • Work
• Fulcrum • Screw

Let’s Start

What simple machines do you use?

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