Simple Machines Work, Mechanical Advantage and Efficiency.
V205.07 Simple Machines. Devices such as levers, ramps, and pulleys that make our work easier. They allow us to apply effort at one place to do work at.
Chapter 2 Concepts of Technology PowerPoint: By Mr. Ahrens Peshtigo Middle/High School Textbook: Introduction to Technology By Pierce and Karwatka.
