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The flashcards below were created by user
simpsonjsmp
on FreezingBlue Flashcards.
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Work
phyiscal or mental effort or activity directed toward the production or accomlishment of something
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Joule
the SI unit of work or energy
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Power
the rate at which work is done or energy is transfored
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Watt
the unit used to express power; equivanlent to joules per second
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Machine
a device that heples do work by either overcoming a force or changing the direction of the applied force
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Work input
the work done on a machine
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Work output
the work done by a machine
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Mechanical Advantage
is the number of times the machine multpies force
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Mechanical efficiency
is a comparison of a machine's work output with the work input
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Lever
is a simple machine that has a bar that proviots at a fixed point, called a fulcrum
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Wedge
is a pair of inclined planes that move
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Pulley
is a simple machine that has a ground wheel that holds a rope or a cable
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Screw
is an inclined plane that is wrapped in a spiral around a cylinder
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wheel and axle
a simple machine consiting of of two circular objects of different sizes
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inclined plane
is the simple machine that is a straight, slanted surface
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compound machine
machines that are made of two or more simple machines
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