Simple Machine

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by guashao
Last updated 4 years ago

Discipline:
Science
Subject:
Technology

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Simple Machine

Simple machine

Screw

Levers

Inclined planes

Wheel&Axle

Pulleys

Wedge

A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.example:bolt,drills

A wheel with a rod, called an axle, through its center lifts or moves loads.example:roller,wheels

A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads. examples: scrissors,switch

An inclined plane is a slanting surface connecting a lower level to a higher level.example:ramp,bath tub

A wedge is an object with at least one slanting side ending in a sharp edge, which cuts material apart.examples:saw,push pin

A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.examples:shoelaces tighten,flag pole

First-class leversas in the seesaw, crowbar, and balance scale.

Second-class leversas a wheelbarrow

third-class leversas a hammer acts


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