Ch 2 The story of the aeroplane ( Class 3 ) Back Exercise

( Part A Question/ Answer)

Q - Give the full names of the Wright brothers.
Ans 1- The full names of write brothers are Wilbur Wright and Orville Wright.

Q - What did the Wright brothers invent ?
Ans2- The Wright Brothers invented  the first aeroplane.

Q - How do birds use their wings to turn and control their speed ?

Ans 3- Birds changed the shape and flapped their wings to turn and control their speed.

Q - Why did the Wright brothers design a motor ?
Ans 4- The Wright Brothers designed a motor because they decided to build a motor powered aircraft.

Q - How long did the first powered aircraft fly ?
Ans 5- The first powered aircraft flew for 12 seconds. 

B.Fill in the blanks
1.The first aircraft designed by Wright brothers was flown as a kite
2. The Wright Brothers spent hours observing birds.
3.  The weight of the biggest glider ever flown in 1901 was 100 pounds .
4. The Wright brothers built a downhill track to launch the flyer.
5. The first motor powered aeroplane was named Flyer .

6. The first motor powered aeroplane was flown by Wilbur Wright.

C.Tick the correct
1. The Wright brothers spent hours together observing
A 1.Birds
2.  The flyer was first flown for twelve seconds in 
A2-1903

( Part D Question/ Answer) 

Q - Why did the Wright brothers arch the tips of the wings of their first aircraft ?

Ans 1- Wright brothers arched the tips of the wings  to control the balance and movement. 

Q - Why was the shape of the glider wings changed ?

Ans 2- The shape of the glider wing was charged to fly it successfully. 

Q- Where was a big full sized  glider tested ?

Ans 3- A big full sized glider was tested at Kitty Hawk in North Carolina. 

Q - State one problem that occurred in the glider of the Wright brothers in 1901?

Ans 4- In 1901, the glider of Wright brothers spun out of control. 

Q - How was the movable tail of the aircraft useful ?

Ans 5- A movable tail of the aircraft helped to balance the aircraft. 

HOTS

Q - How did love for adventure and belief in themselves help the Wright brothers to invent aeroplane ?

ANS -  The Wright brothers invented aeroplane as they did not give up and tried again and again because of their love for adventure and belief in themselves . 

B. Identify the countable and uncountable nouns
Countable.            Uncountable
Pan                          oil
Schools                    tea
City                           butter
Women                    jam
teacher                    juice

Number
Ex
boy - boys
chair - chairs
city - cities
body - bodies

Story - stories                               storey.   storeys
biography  biographies              chapter  chapters
grade   grades                              baby.     babies

Gender
Boy - masculine
Girl - feminine
Students - common

D. Write masculine/ feminine/ common gender against the nouns

father   Masculines                       children     common
man      Masculine                          woman     feminine
people  common                          cousins       common

Spell well
Anagram
Anagram means to rearrange the letters of a word to form a new word.
Ex
Time - item
listen - silent

A.Tick the correct:-
Ear - are                             palm -      lamp
chin - inch                         waist -   waits
face - cafe                        knee -     keen

A1- People like to travel in aeroplane because it is most convenient mode of transport.

A2-Amritsar International Airport.

A3- Goa

A4- There are 449 airports in India.

A5- Air India , Jet Airways.