(AM) Quiz on B-2 Bomber, Velcro, and Shark Skin

What is the primary purpose of the B-2 stealth bomber?

• To serve as a passenger transport aircraft

• To conduct aerial reconnaissance missions

• To provide air support for ground troops

• To conduct long-range missions

Which company was responsible for the development of the B-2 stealth bomber?

• Airbus

• Lockheed Martin

• Northrop Grumman

• McDonnell Douglas

What is a unique design feature of the B-2 that helps it evade radar?

• It has a circular shape

• It uses a mirror-like reflective surface

• It is made of titanium

• Its flying wing design

Approximately how many B-2 bombers are currently in the U.S. Air Force?

• 5

• 21

• 50

• 100

What is the approximate maximum range of the B-2 stealth bomber without refueling?

• 1500 miles

• 3000 miles

• 6000 miles

• 10000 miles

How was Velcro invented?

• Just popped up in an engineer's mind.

• Through the plant that stuck on the clothes.

• By cat's fur.

• Get idea from cockleburrs.

What are the two parts of Velcro?

• Stick and glue

• Fabrics and cotton

• Rubbers and sheets

• Hooks and loops

How long can Velcro last up to?

• Last long

• 10-15 years

• 1 year

• Few months to several years

What is Velcro used for?

• Separate the parts

• House material

• Attach humans clothes

• Join two pieces

The invention of Velcro, a popular fastener, was inspired by:

• The way a rubber band works.

• A zipper.

• A dog's fur.

• A specific type of plant burr.