Simple Machines

STUDY
PLAY

Terms in this set (...)

Screw
An inclined plane wrapped around a cylinder
Wheel and Axel
A simple machine with a center rod or axle joined to a wheel
Wedge
A simple machine that is wide at one end and pointed at the other to help cut or split other objects.
Incline Plane
A simple machine that spreads the work to be done over a distance. The greater distance and more gradual the incline, the less effort force required.
Pulley
A simple machine that consists of a rope that fits into a groove in a wheel
Lever
a simple machine that consists of a bar that pivots at a fixed point called a fulcrum
Compound Machine
a machine made of more than one simple machine
Machines
Make work easier
Work
Force x distance
Fulcrum
The fixed point around which a lever pivots
Joule
Unit used to measure work
Watts
Unit used to measure Power
To make a lever more effective, move the fulcrum ____________ to the load.
Closer
Pulley that changes ONLY direction of force
fixed pulley
Pulley that changes the direction AND amount of force
movable pulley

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