What's an example of a task that requires knowledge of physical objects to perform?
How to Detect an Aneurysm

What's an example of a task that requires knowledge of physical objects to perform?
How can I grab metal out of a tub of corrosive liquid?

What's an example of a task that requires knowledge of physical objects to perform?
To plug a device into a UPS.

What's an example of a task that requires knowledge of physical objects to perform?
To open a jump ring to make chainmail.