What's an example of a task that requires knowledge of physical objects to perform?
To create a refrigeator magnet from a small household item.

What's an example of a task that requires knowledge of physical objects to perform?
How to remove the membrane from the back of a rack of ribs.

What's an example of a task that requires knowledge of physical objects to perform?
To remove a stuck light bulb from a lamp,

What's an example of a task that requires knowledge of physical objects to perform?
How to crack a walnut.