5th grade simple machines

18 terms by JViktorov 

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axle

a pole which is connected to the centerof a wheel

compound machine

a machine made up of more then 1 simple machine

force

a push or a pull causing objectst ostop, start, slow down, speed up, change direction or change shape

fulcrum

the part of a lever that doesn't move

gear

toothe wheel

inclined plane

a sloping surface, or ramp used to help move things to higher or lower places

lever

a simple machine with 2 main parts: a fulcrum and an arm which moves on the fulcrum

load

anything that we want to move (resistance)

machines

devices which help us to do work wit hreduced effort

pully

a simple machine made up of a grooved wheel with a rope, belt or chain around it

fixed pully

a pully which changes the diection of the effort

movable pully

a pully which moves up or down with the load

ramp

a slopping surface or inclined plane, used to help lift or lower objectes

screw

a simple machine made up of 2 main parts: a stright shaft and a sloping surface wrapped around in a spiral

simple machines

wheel and axil, pully, inclined plane, wedge, lever and screw

wedge

a simple machine with 2 surfaces which came together at one point, making a thin and a thick end; 2 inclined planes back to back

wheel

a simple machine used to roll a load easily along a surface

work

we do work whenever we use force to move something (amount of work=effort x distance)

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