What's an example of a task that requires knowledge of physical objects to perform?
Child proof table corners.

What's an example of a task that requires knowledge of physical objects to perform?
How to store pearl jewelry pieces?

What's an example of a task that requires knowledge of physical objects to perform?
To check the done-ness of a piece of meat on the grill,

What's an example of a task that requires knowledge of physical objects to perform?
One wants to remove rust from a metal object.