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

What's an example of a task that requires knowledge of physical objects to perform?
How can I clean the inside of reusuable straws?

What's an example of a task that requires knowledge of physical objects to perform?
How can I re-use a piano bench that I am thinking about selling?

What's an example of a task that requires knowledge of physical objects to perform?
Detect dampness in bed.