Comprehension Level 3

Which of the following is not a product that has been made with Kevlar?

• Tennis rackets

• Bungee jumping cords

• Brake pads

• Body armor

When was the first bulletproof vest invented?

• 1964

• 1975

• 1990

• 2006

For which of the following characteristics is Kevlar known?

• Heat resistance

• Strength

• Durability

• All of the above

Who is credited with inventing Kevlar?

• Robert Kevlar

• Richard Armellino

• Stephanie Kwolek

• None of the above

Which of the following caused the search for a fabric like Kevlar?

• A shortage in the gasoline supply

• A desire to protect police officers

• The need to replace asbestos

• The want of better musical instruments

A vest made of 15 layers of Kevlar with no steel plates could stop all but which of the following rounds?

• Handgun rounds

• Shotgun pellets

• Rifle rounds

• It could stop all of the above

Why did people begin using asbestos in buildings?

• It was extremely durable

• It was very heavy

• It was poisonous to insects

• It was resistant to fire

According to the article, how many American police officers are estimated to wear bulletproof vests daily?

• 1,000

• 2,000

• Over half

• Almost all of them

How much stronger is Kevlar than steel?

• Half as strong

• As strong

• Five times as strong

• 200 times as strong

What product was Kwolek trying to improve when she invented Kevlar?

• Tires

• Milk

• Brake pads

• Armor