Simple Machines

example of wheele and axle ; a cars wheels

example of a pulley ; a ships pulley to pull up the flags

example of a screw ; a spiral staircase

of a wedge ; a gymnastics cheese mat

example of an inclined plane ; a hill , or stairs

example of a first class lever ; scissors

example of a second class lever ; tweezers

example of a third class lever ; a leg

Mechanical Advantage = output force divided by input force

Ideal Machanical Advantage = length of incline divided by height of incline

Ideal Machanical Advantage = radius of input divided by radius of output

Ideal Machanical Advantage = distance from input force to folcrum divided by distance from output force to folcrum

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