The first public institution of higher education in North Carolina, the school opened its doors to students on February 12, 1795. The university offers degrees in over 70 courses of study through fourteen colleges and the College of Arts and Sciences.
Noun. 1. pulley-a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope. pulley block, pulley-block, block. block and tackle-pulley blocks with associated rope or cable.
All mechanical machines are made by combining simple machines. See the fact file below for more information about simple machines. Remove these ads. 1  There are six basic types of simple machines: wheel & axle, pulley, lever, inclined plane, wedge and screw. 2  Complex machines are made up of a combination of these simple machines. 3  Examples of simple machines are wheels, screw drivers, scissors, knives, nut crackers, and hammers. 4  A wheel and an axle together make a simple machine.