simple machines

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pulley
A simple machine that helps lift a load higher while requiring the same amount of force
inclined plane
A simple machine with a slanted surface that decreases the amount of force needed to move an object
lever
Simple machine made of a fulcrum, arm, load, and effort. Reduces the amount of force needed to do work.
gears
A special type of wheel with teeth.
wheel and axle
A simple Machine used to reduce friction, and decrease the amount of force needed to do work.
wedge
A simple machine used to split a solid object with less force, made of two inclined planes.
screw
A simple machine that decreases the force needed to move an object, an inclined plane wrapped around a cylinder. (threads)
force
push or pull
work
Accomplished when an object moves as a result of a force.
load
object being lifted or moved
simple machines
One of six objects that require manual force to perform work includes levers, pulleys, wheels and axles, inclined planes, wedge, and screw
friction
Force that resists movement between two surfaces
Driven Gear
Moves as a result of force from driving gear: pointer
Driving Gear
Transmits force to another gear: handle
Gear Ratio
Number of rotations between each gear (Driving:Driven)
Traction
Amount of contact needed for an object to travel over another surface.
Effort
Force needed to move the load.
Lubricant
A substance that reduces friction between two surfaces.
Joule
A unit used to measure work.
Newton
A unit used to measure force.

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