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1
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2
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- • A pulley is a simple machine that uses grooved wheels and a rope to
raise, lower or move a load.
- • An example of a pulley is a crane.
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3
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- • A wheel and axle is a wheel with rod (axle) through its center.
- • An example of a wheel and axle is a bike.
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4
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- • A wedge is an object with atleast one slanting side ending in a sharp
edge, which cuts material apart.
- • An example of a wedge is a axe.
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5
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- • A lever is a stiff bar that rests on a support called a fulcrum which
lifts or moves loads.
- • An example of a lever is a slot machine.
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6
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- • A inclinded plane is a slating surface connecting a lower level to a
higher level.
- • An example of an inclined plane is a ladder.
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7
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- • A screw is an inclined plane wrapped around a pole which holds things
together or lifts materials.
- • An example of a screw is a light bulb.
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8
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- http://www.mikids.com/Smachines.htm - definitions
- Microsoft Clip Art
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Notes
