What's an example of a task that requires knowledge of physical objects to perform?
To test a homemade facial mask in an inconspicuous spot in case of irritation

What's an example of a task that requires knowledge of physical objects to perform?
What is it called when you clear 4 lines at once in tetris?

What's an example of a task that requires knowledge of physical objects to perform?
How was the shape of a Tomahawk decided?

What's an example of a task that requires knowledge of physical objects to perform?
To ensure balloon doesn't tear when using it to protect iPod in pool.