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Machines Vocabulary Contract

Across
the state or quality of being efficient.
machine consisting of a wheel over which a pulled rope or chain
a simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum
the ratio of the force produced by a machine to the force applied to it,
something that causes a change in the motion of an object
the force which an effort force must overcome in order to do work on an object via a simple machine.
a piece of hard material with two principal faces meeting in a sharply acute angle
Down
A ramp
A complex machine made out of smaller machines
The use of physical or mental energy to do something
A tool designed to make work easier
A simple machine consisting of a rigid bar pivoted on a fixed point
is done when a force that is applied to an object moves that object.
A screw is a mechanism that converts rotational motion to linear motion