muscle levers.ppt

LEVERS MUSCULAR SYSTEM

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LEVERS

MUSCULAR SYSTEM

SIMPLE MACHINE - makes work easier.

LEVERS

*USED IN BOTH SIMPLE MACHINES AND HUMANS.

TO LIFT UP WEIGHT MORE EASILY.

DONE WITH LESS EFFORT.

PARTS OF A LEVER1. LEVER- bar which action

performs upon2. FULCRUM- fixed point lever

based on3. LOAD- weight of part/object

being lifted4. EFFORT- force applied to lift

load

FIRST CLASS LEVER

FULCRUM IN THE CENTER, WITH LOAD AND EFFORT AT OPPOSITE

ENDS.

CLASS 1

SECOND CLASS LEVERLOAD IS IN THE CENTER, WITH FULCRUM AND EFFORT ON OPPOSITE

ENDS.

CLASS

CLASS 2

THIRD CLASS LEVEREFFORT IS IN THE CENTER WITH THE LOAD AND FULCRUM ON OPPOSITE ENDS.

CLASS

CLASS

LEVERS AS SIMPLE MACHINES

LEVERS IN THE BODY

WHAT CLASS LEVER?

What Class?

What Class?

CLASS

Class ?

Class ?

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muscle levers.ppt

Entertainment & Humor

class lever loadis

class lever fulcrumin

class lever effortis

lever lever bar

fulcrum fixed point

load weight

lift load

opposite ends