Simple Machines Chapter 6.

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Presentation transcript:

Simple Machines Chapter 6

How Do Simple Machines Help People Do Work? Vocabulary: Lesson 1

the use of force to move an object over a distance work simple machine the use of force to move an object over a distance a machine with few or no moving parts that you apply just one force to

lever – a simple machine made of a bar that pivots on a fixed point fulcrum- the fixed point on a lever

How Do a Pulley and a Wheel-and-Axle Help People Do Work? Vocabulary: Lesson 2

pulley wheel-and-axle a simple machine made of a wheel with a line around it a simple machine made of a wheel and an axle that turn together

How Do Other Simple Machines Help People Do Work? Vocabulary: Lesson 3

a simple machine that is a slanted surface inclined plane a simple machine that is a slanted surface

a simple machine made of two inclined planes placed back-to-back screw wedge a simple machine made of a post with an inclined plane wrapped around it a simple machine made of two inclined planes placed back-to-back

6 Simple Machines lever * pulley screw fulcrum inclined plane wedge

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