Final answer:
The correct answer is 3) Adhesive tape, which includes a sticky substance that removes the need for taping and filler tape.
Step-by-step explanation:
Adhesive tape includes its own sticky substance which allows it to adhere to surfaces without the need for additional taping methods or filler tape. When considering whether the forces exerted by the glue on a piece of adhesive tape can be a type of simple friction, one must consider how these forces enable the tape to stick to different surfaces. Unlike simple friction which depends largely on the normal force between two surfaces, the stickiness of tape involves adhesive forces that can act in various orientations, which is why tape can adhere to vertical walls and even ceilings. This is due to intermolecular forces between the glue and the surface it contacts, allowing the tape to resist gravity and maintain its position on non-horizontal surfaces.
Self-adhesive labels, also known as sticker labels, have a built-in adhesive that allows them to stick securely to surfaces without the need for taping or using filler tape. These labels are commonly used for labeling packages, bottles, and other items because they are easy to apply and remove.