What's an example of a task that requires knowledge of physical objects to perform?
How can you get gum out of your hair?

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

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

What's an example of a task that requires knowledge of physical objects to perform?
What is an important item to wear over your eyes when making a bicycle powered washing machine?