simple machines

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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


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