http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_simp_machines/cub_simp_machines_lesson02.xmllessontext/xmlIntegrated Teaching and Learning Program, simple machineinclined planescrewwedgemechanical advantageworkInclined PlaneMechanical AdvantageScrewSimple MachineWedgeWork

This lesson introduces students to three of the six simple machines used by many engineers. These machines include the inclined plane, the wedge and the screw. In general, engineers use the inclined plane to lift heavy loads, the wedge to cut materials apart, and the screw to convert rotational motion into linear movement. Furthermore, the mechanical advantage describes how easily each machine can do work and is determined by its physical dimensions.

Simple machines are extremely valuable to engineers since they are used to accomplish extraordinary amounts of work with ease. In particular, engineers can design a simple machine which provides a desired mechanical advantage so that work can be done efficiently and effectively. The inclined plane, wedge and screw are used in many engineering systems today, including stairs, can openers, and airplanes, among many others.Explain how the inclined plane, wedge and screw make work easier.Identify how the inclined plane, wedge and screw are used in many familiar engineering systems today.Discuss the mechanical advantage of an inclined plane, wedge and screw.20TeachEngineering.orgJake LewisMalinda Schaefer ZarskeJanet YowellKahan, Peter. Motion, Forces, and Energy: Science Explorer Student Edition. Upper Saddle River, NJ: Prentice Hall. 2002.Macaulay, David. The way things work. Boston, MA: Houghton Mifflin Company. 1988.http://www.usdoj.gov/crt/ada/votingchecklist.htmWoods, Michael, Woods, Mary. Ancient machines: from wedges to waterwheels. Minneapolis, MN: Runestone Press. 2000.S11416DDInternational_Technology_Education_Association-ITEA_STL_StandardsTechnologyF. Knowledge gained from other fields of study has a direct effect on the development of technological products and systems.68S11424D2ColoradoSciencea. Predict and evaluate the movement of an object by examining the forces applied to it 88S11424D3ColoradoScienceb. Use mathematical expressions to describe the movement of an object 88S1142658ColoradoMatha. Add, subtract, multiply and divide rational numbers including integers, positive and negative fractions and decimals 88S11426CFColoradoMathb. Use representations of linear functions to analyze situations and solve problems 88United StatesCopyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulderhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2010-08-238Teacher