Esmont is a historic home located near Esmont, Albemarle County, Virginia. The house was built about 1818, and is a two-story, three bay, square structure in the Jeffersonian style. It has a double pile, central passage plan.
These three simple machines all alter force in such a way that it makes it easier to move an object. You might not have noticed, but we use these simple machines all the time. Every time you sweep the floor with a broom you're using a type of lever.
A lever, one of the six simple machines.copyrightCopyright Â© U.S. Department of Transportation, Federal Highway Administration, http://www.fhwa.dot.gov/environment/fspubs/05232810/page16.htm. Students are introduced to three of the six simple machines used by many engineers: lever, pulley, and wheel-and-axle. In general, engineers use the lever to magnify the force applied to an object, the pulley to lift heavy loads over a vertical path, and the wheel-and-axle to magnify the torque applied to an object. The mechanical advantage of these machines helps determine their ability to make work easier or make work faster.