What's an example of a task that requires knowledge of physical objects to perform?
Add slippery surface to snow shovel.

What's an example of a task that requires knowledge of physical objects to perform?
To deconstruct the links of chain in a necklace,

What's an example of a task that requires knowledge of physical objects to perform?
To make music sound more folk-like when performing live,

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