Screw

The video tutorial explains what a screw is, describing it as a grooved metal rod used for various purposes such as attaching, lifting, or making holes in objects. It is identified as a simple machine, specifically an inclined plane wrapped around a rod. The tutorial elaborates on how inclined planes facilitate moving objects between different levels. It highlights the practical applications of screws in everyday objects like jar lids and light bulbs, and their role in lifting or lowering objects. The Archimedes Screw is introduced as a tool for moving water. The video concludes by prompting viewers to consider the similarities between the work done by inclined planes and screws.

What is a screw primarily used for?

• Writing

• Painting

• Attaching, lifting, or making holes

• Cooking

How is a screw related to an inclined plane?

• A screw is a flat surface

• A screw is a moving part

• A screw is unrelated to inclined planes

• A screw is a type of inclined plane wrapped around a rod

Which of the following is an example of a screw in everyday life?

• A chair

• A book

• A jar lid

• A spoon

What is the function of the grooves in a screw?

• To make it slippery

• To make it colorful

• To make it heavier

• To make it easier to lift or lower objects

What is the Archimedes Screw used for?

• Cooking food

• Moving water from low to high areas

• Writing letters

• Flying in the air