Polea

The video tutorial introduces pulleys, explaining their basic components and how they function similarly to rocker arms. It covers the three main functions of pulleys: lifting, lowering, and moving objects. The tutorial also highlights various applications of pulleys, such as in theater curtains, exercise machines, and well drilling. Finally, it encourages viewers to think about other potential uses of pulleys.

What is a pulley and how does it function?

Describe the three main functions of a pulley.

What are some practical applications of pulleys in everyday life?

How does a pulley system help in lifting heavy objects?

Can a pulley do anything else besides lifting and lowering an object? Explain.