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Unit 2 Lessons 1,2,3

TermDefinition
work the use of force to move an object
energy the ability to do work
power the rate at which work is done
kinetic energy the energy of motion
potential energy the energy an object has because of its position
mechanical energy the energy possessed by an object due to motion andposition
machine is any device that help people do work
mechanical advantage is the number if times a machine multiplies the input force
mechanical efficiency is the comparison of a machines work output with the work input
lever is a simple machine that has a bar that pivots at a fixed point
fulcrum the fixed point of a lever
wheel and axle is a simple machine that is made of a wheel that is connected to a smaller cylindrical object , the axle
pulley is a simple machine that has a grooved wheel that hold a rope or a cable
inclined plane is a simple machine that is a straight, slanted surface
Created by: 18dlooney0614
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