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20 terms

Machines & Mechanical Systems Vocabulary

Vocabulary words for Cha. 4 Machines & Mechanical Systems.
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input
includes everything you do to make a machine work.
input force
the force applied to a machine.
force
a push, pull or any action that has the ability to change motion.
machines
a type of mechanical system.
mechanical advantage
the ratio of output force to input force (MA).
mechanical system
a series of interrlated, moving parts that work together to accomplish a certain task.
output force
the force a machine applies to accomplish a task.
simple machine
an unpowered mechanical device, that has an output and input force.
engineering
the applications of science to solve technical problems.
engineering cycle
a process used to build devices that solve technical problems (design, prototype, test, evaluate).
engineers
people who design technology to solve problems.
fulcrum
a fixed point on a lever.
gear
a wheel with teeth.
input arm
when you place a lever on a fulcrum, the side where force is applied.
input gear
the gear you turn, or apply force to.
lever
a stiff structure that rotates around a fixed point called a fulrum.
output arm
is the end of a lever on a fulcrum where the output force is applied.
output gear
the gear that is connected to the output of the machine.
prototype
a working model of a design that can be tested to see if it works.
output
what the machine does.