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10 Cards in this Set

  • Front
  • Back
machine
any tool that makes work easier
efficiency
how well something works
compound machine
made of more than one simple machine
lever
a simple machine used to lift things
fulcrum
the point on which a lever is supported
axle
a shaft on which wheels turn
incline
slope
complex machine
a machine made of compund and simple machines
wedge
a simple machine that tapers to a thin edge that is used to split something
pulley
a wheel with a grooved rim that helps to change the direction of something by using force