The video explains how a vacuum cleaner works by comparing it to sipping through a straw. It details the components like the motor and fan, which create low air pressure to lift dust and dirt. The rotating brush helps loosen dirt, and the porous bag traps particles while allowing air to pass through, effectively cleaning the floor.

What role does the motor play in the functioning of a vacuum cleaner?

Explain how a vacuum cleaner creates an area of low pressure.

Describe the process by which dirt and dust are lifted into a vacuum cleaner.

How does the rotating brush contribute to the cleaning process?

What characteristics should the vacuum cleaner's bag have?