What's an example of a task that requires knowledge of physical objects to perform?
Safely clean thin vase.

What's an example of a task that requires knowledge of physical objects to perform?
How to keep from saying the wrong thing.

What's an example of a task that requires knowledge of physical objects to perform?
How should you act if you run across a skunk in the wild?

What's an example of a task that requires knowledge of physical objects to perform?
How to make a watermelon shake.