pulley

     

A pulley (also calle a sheave or block) is a wheel with a groove between two flanges around its circumference. A rope, cable or belt usually runs inside the groove. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

Trivia about pulley

  • This one of the simple machines can be made by using a wheel & a rope
  • (Sarah of the Clue Crew pulls up on a Venetian blind.) When I pull down on the cord, the blinds go up; at the top is a single fixed one of these simple machines, which reverses the direction of force
  • (Jimmy of the Clue Crew reports from San Francisco) At the end of a cable car line, each cable is turned by a grip, which is basically this simple machine
  • This one of the simple machines is made by using a wheel & a rope
  • The word "winch" is from Old English for this simple machine, which helps a winch lift stuff
  • A block & tackle uses 2 or more of this simple machine to reduce the amount of effort needed to lift a load
  • This simple machine is found at the top of many flagpoles

Found pages about pulley

Users that searched for pulley