Direction: Complete the passage about screws below by filling in each blank with the appropriate word.

A screw is a ¹._____ inclined plane. it's basically an inclined plane wrapped around a ²._____. it is composed of a cylindrical body with a spiral ridge called a ³._____. the threads surround the cylinder from the tip up to the head. A screw increases ⁴.__ but at a longer distance. Screws use friction. for a metal screw driven into the wood, there is a lot of ⁵.________ between the wood and the metal thread.

friction force lever
spiral square thread
cylindrical body ​