What is a Screw? - Simple Machines | Science for Kids | Educational Videos by Mocomi

منتشر شده در 01 تیر 1398

https://mocomi.com/ presents: What is a screw?

A screw is one of the most commonly used mechanical devices in the world. It is machine that converts rotational motion into linear motion.

A screw has a long and thin metal shaft with threads spiraling along it’s length. It also had a turning head with a groove where a screwdriver can be used to rotate the screw.

The strength of a screw’s hold depends on the width of the threads and the distance between them. The closer and wider the threads, the stronger the hold will be.

However, more threads require more rotations to attach the screw and wider threads require more force in the rotations.

The mechanical advantage if the screw increases when the angle of the spiral increases. The screw has become an integral part of the mechanical age. It can be used to:

nut and bolt – Hold things together.

Car juck – Lift heavy loads.

Drill gun – Drill holes on objects.

Watch this animated video and learn about how this simple machine works and why it has become such an integral part of the mechanical age.

To learn more about screws, visit: https://mocomi.com/screw/