Which is stronger: Glue or tape? - Elizabeth Cox

What was the oldest known glue made from?

• A mixture of animal bone and plant materials.

• Synthetic molecules created in a lab.

• Tree resin and milk protein.

• Water and vegetable starch.

What is the main difference between adhesive and cohesive bonds?

• Adhesive bonds hold a material to itself, while cohesive bonds hold two different materials together.

• Adhesive bonds hold two different materials together, while cohesive bonds hold a material to itself.

• Adhesive bonds are always stronger than cohesive bonds.

• Cohesive bonds are always stronger than adhesive bonds.

Why can tape be peeled off and reused, but dried glue cannot be reattached without new glue?

• Tape uses stronger chemical reactions, while glue relies on physical drying.

• Tape forms weaker, reversible Van der Waals forces, while glue's drying process creates irreversible bonds.

• Glue contains a solvent that prevents reattachment, unlike tape.

• Tape's backing material is designed for reuse, but glue's isn't.

Why is tape a better choice than liquid glue for repairs in zero gravity?

• Liquid glue is too heavy to use in space.

• Tape is more flexible and can wrap around objects easily.

• Liquid glue relies on a solvent that cannot evaporate in zero gravity.

• Tape forms stronger bonds than liquid glue in any environment.