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sci. mrs.margavio

cards lessons science

work when a force causes an object to move in the direction of the applied force
machine any device what changes the amount of force aplied to an object the directions of the force or both
lever a simple machine having a arm that moves around a fixed point
fulcrum fixed point
effort arm the of a lever on which a person or another machine applies the force
resistance arm the part of a lever that applies a force on an object
pulley a wheel that has a groove alonf the edge
wheel and axle a simple machine in which either a wheel turns an axle or an axle turns a wheel around a central point
inclined plane any flat slopping surface
wedge a simple machine made up 1 or 2 inclined planes
screw inclined plane wrapped around a cylinder or cone
compound machine a decvice that is made up of 2 or more simple machines
efficieny the ratio of the work that comes out of a machine to the work put into the machine
Created by: ELIZABETH1998