Question

1. what was the purpose of the competitions mentioned in the video?

a. to see who could build the fastest car
b. to see who could make the best and fastest flying planes
c. to learn about the history of aviation
d. to study the physics of flight

1. who were the first brothers to achieve sustained powered flight?

a. the wright brothers
b. the montgolfier brothers
c. the earhart brothers
d. the johnson brothers

1. what principle is used to explain how aircraft wings generate lift?

a. bernoullis principle
b. newtons third law
c. the law of gravity
d. the principle of aerodynamics

1. what tragic event is associated with icarus in the video?

a. he fell from a great height
b. he was imprisoned
c. he lost his wings
d. he flew too close to the sun

1. how did aviation change during world war i?

a. it was used for peaceful purposes
b. it was weaponized
c. it was completely abandoned
d. it became a form of entertainment

1. what did the united states do when the soviet union blocked land routes into west berlin?

a. they launched an attack
b. they sent food and supplies via an airlift
c. they withdrew all troops
d. they negotiated a peace treaty

Explanation:

1. Competitions in aviation history often aimed to develop the best and fastest flying planes.
2. The Wright Brothers are widely - known for achieving the first sustained powered flight.
3. Bernoulli's Principle is used to explain lift generation by aircraft wings.
4. In Greek mythology, Icarus flew too close to the Sun and met a tragic end.
5. During World War I, aviation was weaponized for military purposes.
6. When the Soviet Union blocked land routes to West Berlin, the US launched an airlift to send food and supplies.

Answer:

1. b. To see who could make the best and fastest flying planes
2. a. The Wright Brothers
3. a. Bernoulli's Principle
4. d. He flew too close to the Sun
5. b. It was weaponized
6. b. They sent food and supplies via an airlift