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Work and Machines

simple machines

work Force exerted on an obeject
joule a unit of work equal to 1 newton
power rate which 1 form of energy is transformed into another
machine a device that changes the amount of force
mechanical advantage number of times a machine changes its force
efficency percent of the input work
inclined plane a flat sloped surface
wedge and inclined plane that moves
screw inclined plane wrapped around a cylinder
lever rigid bar that pivots on a fulcrum
fulcrum the point where the lever pivots
wheel and axel 2 attached circular objects with a common axis
pulley a grooved wheel with a rope or string
compound machine a machine that has multiple simple machines
Created by: 3064600