simple machines
wheel and axle
A simple Machine used to reduce friction, and decrease the amount of force needed to do work.
screw
A simple machine that decreases the force needed to move an object, an inclined plane wrapped around a cylinder. (threads)
pulley
A simple machine that helps lift a load higher while requiring the same amount of force
wedge
A simple machine used to split a solid object with less force, made of two inclined planes.
inclined plane
A simple machine with a slanted surface that decreases the amount of force needed to move an object
Newton
A unit used to measure force.
work
Accomplished when an object moves as a result of a force.
crowbars, pliers, seesaw, scissors
Examples levers
Nut crackers, crab leg crackers, wheelbarrows, bottle openers
Examples of levers
tweezers, hammers, shovel
Examples of levers
Effort
Force needed to move the load.
friction
Force that resists movement between two surfaces
simple machines
One of six objects that require manual force to perform work includes levers, pulleys, wheels and axles, inclined planes, wedge, and screw
lever
Simple machine made of a fulcrum, arm, load, and effort. Reduces the amount of force needed to do work.
load
object being lifted or moved
force
push or pull