Question

1. tennis racquets

c. brake pads
b. bungee jumping cords
d. body armor

1. when was the first bulletproof vest invented?

a. 1964
b. 1975
c. 1990
d. 2006

1. for which of the following characteristics is kevlar known?

a. heat resistance
b. strength
c. durability
d. all of the above

1. who is credited with inventing kevlar?

a. robert kevlar
b. richard armellino
c. stephanie kwolek
d. none of the above

1. which of the following caused the search for a fabric like kevlar?

a. a shortage in the gasoline supply
b. a desire to protect police officers

Explanation:

1. Kevlar is used in body armor, so it's related to bullet - proof vests.
2. The first modern bullet - proof vest was invented in 1964.
3. Kevlar is known for heat resistance, strength, and durability.
4. Stephanie Kwolek is credited with inventing Kevlar.
5. The search for a fabric like Kevlar was partly due to a desire to protect police officers.

Answer:

1. d. Body armor
2. a. 1964
3. d. All of the above
4. c. Stephanie Kwolek
5. b. A desire to protect police officers