What's an example of a task that requires knowledge of physical objects to perform?
How to protect your cell phone from breaking.

What's an example of a task that requires knowledge of physical objects to perform?
make butter in a mason jar

What's an example of a task that requires knowledge of physical objects to perform?
How can I find studs inside a finished wall in my home?

What's an example of a task that requires knowledge of physical objects to perform?
To keep cake moist when rolling.