MP3 Exam Review

Polyester is incredibly durable

• True

• False

How did W.H. Carothers discover that he could create synthetic fibers?

• By mixing them

• By discovering that synthetic fibers are better than non-synthetic fibers.

• By accident

• All of the above

Where did research for polyester take place?

• China

• England

• America

• Germany

Select the ones that apply to polyester (More than one answer)

• Often used in plastics to make shatterproof bottles

• Acts like rubber

• Useful to make medical equipment because its able to resist heat and cleaners

• Strong and lightweight

• Tends to hold odors compared to natural fibers

What tree is natural rubber from?

• Yellow birch

• Hevea brasiliensis

• Pin cherry

• Oak tree

Who discovered natural rubber?

• Charles Marie de la Condamine.

• Christopher Columbus

• Pokimane

• Ms. Lo

What are ways natural rubber is used? (More than one answer)

• Tires

• Clothes

• Toys

• None of the above

What is Nylon?

• Nylon is any synthetic plastic material composed of low molecular weight polyamides.

• Nylon is any synthetic plastic material composed of high molecular weight polyamides.

• Nylon is a non synthetic material composed of low molecular weight.

Who discovered Nylon?

• Hermann Staudinger

• Pablo Flory

• Wallace Carothers

Which characteristic is correct about Nylon

• Nylon has mechanical, chemical, thermal, electrical properties and the possibility of being modified with additives.

• Nylon only has thermal, electrical properties.

• Nylon only has mechanical and chemical properties.