What's an example of a task that requires knowledge of physical objects to perform?
Remove gloss from furniture.

What's an example of a task that requires knowledge of physical objects to perform?
To hold a nail in place while hammering, without risking your fingers,

What's an example of a task that requires knowledge of physical objects to perform?
how do you clean lettuce?

What's an example of a task that requires knowledge of physical objects to perform?
how do you end a fight?