Final answer:
The slip knot is the rigging hitch that forms a slip noose used for lifting or moving objects, adjusting when tension is applied, and easily undone as needed.
Step-by-step explanation:
The rigging hitch that forms a slip noose around the object to be lifted or moved is the slip knot. The slip knot is specifically designed to create an adjustable loop that tightens when pulled on one end and can easily be undone by pulling the other end. The other options provided, such as the bowline, form fixed loops, rather than adjustable nooses. The clove hitch and sheet bend are also types of knots used in rigging, but they do not form a noose.