Chapter 3 Motions of the Earth

Chapter 3 – Motions of the Earth Class 6

 

Motion of the earth class 6 notes | NCERT Solutions for Class 6 Geography Chapter 3 – Motions of the Earth

 

Answer the following questions briefly.

 

Q. – What is the angle of inclination of the earth’s axis with its orbital plane?

Ans – The earth’s axis, which is an imaginary line, forms a 66° angle with its orbital plane.

 

Q. – Define rotation and revolution.

Ans – The movement of the earth on its axis is called rotation while Revolution refers to the movement of the earth around the sun in a fixed path or orbit.

 

Q. – What is a leap year?

Ans – A leap year is one in which February has 29 days rather than 28 days. As a result, a leap year has 366 days rather than 365 days.

 

Q. – Differentiate between the Summer and Winter Solstice.

Ans – Summer Solstice:- The longest day and shortest night at these locations occur on June 21st. All of these conditions are reversed in the Southern Hemisphere at the moment. It is the winter season there. The nights are longer than the days. The Summer Solstice refers to the Earth’s position at this time of year.

Winter Solstice – A large portion of the Southern Hemisphere is illuminated by the Sun. Winter has thus arrived in the Northern Hemisphere. During this time of year, nights in the Northern Hemisphere are longer than days.In the Northern Hemisphere, it is observed on December 22nd.

 

Q. – What is an equinox?

Ans – The equator receives direct sunlight on March 21st and September 23rd. Since none of the poles is tilted towards the sun in this location, the entire earth has the equal days and nights. This is called equinox.

 

Tick the correct answers.

(a) The movement of the earth around the sun is known as

Rotation

Revolution

Inclination

Answer – Revolution

 

(b) Direct rays of the sun fall on the equator on

21 March

21 June

22 December

Answer – 21 March

 

(c) Christmas is celebrated in summer in

Japan

India

Australia

Answer – Australia

 

(d) Cycle of the seasons is caused due to

Rotation

Revolution

Gravitation

Answer – Revolution

 

Fill in the blanks.

(a) A leap year has _______________ number of days.

(b) The daily motion of the earth is _______________.

(c) The earth travels around the sun in ______________ orbit.

(d) The sun’s rays fall vertically on the Tropic of ___________ on 21st June.

(e) Days are shorter during ___________ season.

 

Answers

  1. 366
  2. Rotation [ also called earthday,takes 24 hours]
  3. Elliptical
  4. Tropic of Cancer
  5. Winter

 

Geography Chapter 3 – Motions of the Earth

 

 

 

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