Understanding Screws

The video tutorial explains that a screw is an inclined plane wrapped around a rod, commonly used to hold things together or lift heavy objects. It includes a hands-on activity using paper and a pencil to demonstrate how a screw works. The concept of screw pitch is introduced, explaining that the distance between threads affects how easily a screw can be driven into wood.

What is a screw primarily used for?

• To measure distances

• To conduct electricity

• To hold things together

• To cut materials

In the hands-on activity, what is the purpose of coloring the longest edge of the paper triangle?

• To make it look pretty

• To identify the base of the triangle

• To observe how it spirals around the pencil

• To measure the length of the edge

What does the colored edge of the paper represent when wrapped around the pencil?

• The height of the pencil

• The weight of the pencil

• The diameter of the pencil

• The threads of a screw

What is the term for the distance a screw moves forward in one complete turn?

• Thread

• Radius

• Diameter

• Pitch

Why is it more challenging to insert a screw with a larger pitch into wood?

• It is heavier

• It requires more force

• It is sharper

• It is longer