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SCIENCE - 4TH QUARTER
Simple Machines In Motion
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Avi de Jesus
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Cards (9)
is a mechanical device that can be used to change the direction of a force or multiply force
simple machine
a rigid bar that turns around a pivot called the fulcrum
lever
a flat surface with one end higher than the other.
inclined plane
an inclined plane wrapped around a cylinder or a pole
screw
has a sharp edge and is usually used for cutting
wedge
is a force multiplier
wheel
and
axle
a simple machine that changes the direction of the force
pulley
fixed pulley does not travel with the load, while a ___ pulley moves along the rope with the load.
movable
the life span of simple machines depends on how well they are taken___ of
care