SIMPLE MACHINES. THE LEVER FAMILY. simple machines One of six basic types of machines which are basis for all other forms of machines. have a rigid arm and a fulcrum. six types divided into two families. FIRST CLASS LEVERS.
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One of six basic types of machines which are basis for all other forms of machines.
have a rigid arm and a fulcrum.
six types divided into two families.
fulcrum located between points of application of input and output forces.
block and tackle:
a lever or pulley connected to a shaft.
steering wheel of a car, screwdrivers, and cranks
multiply and redirect force.
turns small input force into large output force by spreading work out over a large distance.
Changes both magnitude & direction of force
Functions as two inclined planes back to back.
Turns single downward force into two forces directed out to sides.
an inclined plane wrapped around a cylinder.