Polymers

Large molecules made up of small monomers are called

• polymers

• peptides

• peptones

• monomers

Monomers of ethene in thousand numbers react together in addition polymerization to produce

• polyamides

• polyesters

• poly(ethene)

• all of them

Once formed, it can be heated and reformed over and over again

• thermoset

• thermoplastic

• elastomer

• kevlar

Which of these is an example of synthetic (man made) polymer?

• cotton fibers

• rubber

• wool

• bakelite (phenol-formaldehyde resin)

Small molecules that make up larger molecules

• polymer

• monomer

• plastic

• synthetic

Plastic bottles are fabricated by using which method

• Rotational molding

• Injection molding

• Blow molding

• Extrusion

Name of this process?

• Extrusion

• Compression molding

• Injection molding

• Transfer molding

Why are plastics most often used to make stuff?

• Because plastics are stronger than other materials

• Because most plastics are cheap and easy to process

• Because plastics are expensive

• Because all plastics are good for the environment

Which of the following is TRUE about thermoplastic polymers?

• can be remoulded

• cannot be recycled

• can be stretched

• high elasticity

Which plastic manufacturing process involves forcing melted plastic through a shaped opening in a "die" to create a continuous piece which is then often cut to length.

• Injection Molding

• Extrusion

• Blow Molding

• 3D Printing

Answer explanation