This is a community of those using "Building Foundations of Scientific Understanding"

Elementary Science Education

Pulleys

Viewing 0 reply threads
  • Author
    Posts
    • #7480

      Bernard Nebel
      Keymaster

      The following lecture video shows and describes the mechanical advantage of a pulley: https://www.youtube.com/watch?v=bUkD1Hs_ahE

      Pulley systems (“block and tackle”) were and still are widely used on sailing vessels to pull the sails. Type into your browser: block and tackle sailing ships images

      (A pulley is defined as the wheel over which a belt or rope is run. Two or more pulleys together is called a “block”. “Tackle” refers to the rope.)

      Blocks and tackle are similarly widely used on cranes. Type into your browser: block and tackle cranes images.

Viewing 0 reply threads
  • You must be logged in to reply to this topic.