RESOURCE CHART

SIMPLE MACHINES
WHAT IT IS

 

HOW IT HELPS

US WORK

 

EXAMPLES
LEVER

A stiff bar that rests on a support called a fulcrum

Lifts or moves loads

Shovel, nutcracker, seesaw,crowbar,elbow,tweezers,bottle opener

INCLINED PLANE

A slanting surface connecting a lower level to a higher level

Things move up or down it

Slide, stairs, ramp, escalator, slope

WHEEL AND AXEL

A wheel with a rod, called an axel, through its center: both parts move together

Lifts or moves loads

Car, wagon, doorknod, pencil sharpener, bike

SCREW

An inclined plave wrapped around a pole

Holds things together or lifts

Screw, jar lid, vise, bolt, drill, corkscrew

PULLEY

A grooved wheel with a rope or cable around it

Moves things up, down, or across

Curtain rod, tow truck, mini-blind, flag pole, crane

WEDGE

An object with at least one slanting side ending in a sharp edge

Cuts or spreads an object apart

Knife, pin, nail, chisel,ax, snowplow, front of a boat

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