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Unit Lesson 1-3

work Is the use of force to move an object some distance in the direction of the force.
Energy Is the ability to do work
Power Is the rate at which work is done
Kinetic Energy Is the energy of motion
Potential Energy is the energy of an object has because of its position, or chemical compotion
Mechanical Energy is the energy possessed by an object due to its motion and position.
machine is any device that helps people do work by changing the way work is done
mechanical advantage is the number of times the machine multiples the input force
Mechanical efficiency is a 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
wheel and axle is a simple machine that is made of a wheel connected to a smaller cylindrical object
pulley a simple machine that has a grooved wheel thats holds a rope or a cable
inclined plane is a simple machine that is a straight, slanded surface
Created by: 18hutchisonE0502