Unit 18 Wright Brothers || Class 9 English Notes

 

WRIGHT BROTHERS

A. find the words from the following above.

a. accessories equipment that are useful but not essential

b. descent an action of guing

c. aeronautical connected with the science or practice of building and flying aircraft.

d. Steady fixed in a -place or position, supported or balanced;

e. experiment a scientific procedure undertaken to make discovery.

f. plague to cause pain or trouble to somebody over a period of time.

B. Write This or Fales.

a. The Wright brothers sold copies of toy helicopters at the market. (False)

b. They had a printing business in their cycle shop. (False)

c. The experience of cycle helped them to generate ideas for controlling and balancing aircraft. (True)

d. The wing warping system controls the aircraft in a  roll. ( True)

e. They learned more about balancing by watching the aircraft fly. (True)

f. Their first exprimentation was with kite. (True)

g. Wilbur Wright was the pilot of their 1907 flying. (False)

h. Their aircraft could not fly straight. (False)

C. Put the following events from the text above in chronolgical order.

a. Their first flyer took off its own power with a pilot.

b. The Wright brothers opened a cycle shop.

c. The Wright brothers developed a machine overcoming complex technical problems.

d. Milton Wright broght home a toy helicopter.

e. Wright brothers build their first machine designed to carry a pilot.

f. The children made copies of the toy helicopter.

g. The Wight brothers began their aeronautical research.

h. The wright brothers started a printing businesse.

= Answer is given below:

a. Milton Wright broght home a toy helicopter.

b. The children made copies of the toy helicopter.

c. The wright brothers started a printing businesse.

d. The Wright brothers opened a cycle shop.

e. The Wight brothers began their aeronautical research.

f. Wright brothers build their first machine designed to carry a pilot.

g. Their first flyer took off its own power with a pilot.

h. The Wright brothers developed a machine overcoming complex technical problems.

D. Answer these questions:

a. What services did the Wright bothers offers from the cycle shop?
= From the cycle shops, the Wright brothers sold and repaired bicycles. They replaced spokes, fixed broken chains and sold accessories. Later, they also began to build their own brand of bicycles.

b. How did their cycle business help them to build an aircraft?
= The experiences with braces aided the Weight brothers in the investigations of flight. They used the technology they learned from their bicycle business in their airplanes. Their thoughts on balancing and controlling their aircraft also roooted in their experice as cyclists. Thus, their cycle business help them to build.

c. How did the brothers develop the idea of balance and contral in the flight of an aircraft?
=In the flight of an aircraft, the brothers develop this idea of balance and control by three axes of motion a wing warping system and also by observing buzzards keeping Their balance by twisting their wings and sometimes curving and wing more than the other.

d. What way their first aircraft like?
→ Their first aircraft was like a small kite with a five-foot wingspan that was used to test their notions of aircraft control.

e. What did they do to create the flight canditions?
= To create the flight conditions, they teated small model wings in a wind tunnel they had built.

f. What is "wing warping"?
="Wing Warping was a system which was used to control the aircraft in a roll.

g. When and where did the first flyer take off?
= The first flyer took off at 10:35 am in 1907 at Kill Devil Hills .N.C.

h. What progress had they made they made by 1904?
= They achieved the first circular flight of an airplane on September 20, 1904. This was the progress they had made by 1904.

i. What was the world's first practical airplane like?
= The world's first practical airplane like was Flyer.