What's an example of a task that requires knowledge of physical objects to perform?
How to make ice cream without an ice cream maker.

What's an example of a task that requires knowledge of physical objects to perform?
How to greet someone in German?

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

What's an example of a task that requires knowledge of physical objects to perform?
How do you use a clothespin?